Aikyam-Lab/Synoptic-Bench huggingface dataset:
Otherwise, cool temperatures to prevail with highs today forecast to climb into the lower 60s. /05/ (Friday through Saturday) The upper trough responsible for yesterday's rainfall has shifted eastward into NE Louisiana. But, it will bring a bringing a reinforcing shot of cooler air, with overnight lows falling into the 30s areawide.
Post-frontal cold air advection is not expected to be very strong, so drier air eroding a persistent cloud layer will allow diurnal heating to raise high temperatures into the low 60s for most areas.
/EC/ Today and Tonight: A compact upper-level low pressure system seen spinning over the MS/AL border early this morning will quickly sweep east of our forecast area today. In the wake of these disturbances, a cold front will dip into the area. Short wave ridging at the start will keep things dry Saturday.
Subsidence associated with incoming sfc ridging should limit diurnal cloud production inland but the lake clouds will probably continue to impact the Lk MI shoreline to some extent. Roughest conditions likely out near the 5 mile point offshore in northerly flow before winds and waves subside later in the day/early evening as sfc ridging arrives. -Mostly sunny today, increasing clouds Saturday A cold dry airmass continues to flow into the cwa on the heels of north winds behind the cold front that passed through yesterday.
(Tonight through Saturday night) Short term models develop a weak coastal trough off the lower Texas coast. The trough evolves from a northward moving warm front along with slowly veering Gulf winds resulting from retreating high pressure.
300 PM CST Fri Nov 24 2023 Tonight through Saturday: A sprawling area of continental polar high pressure centered over the midwestern states and extending southward into our region will control weather over the forecast area through the near term. For tonight, areas of frost could develop, especially if skies clear out more than expected, but observed temperatures should stay above freezing.
(The rest of today ) A cold front moved through overnight leaving much cooler air in place with continued cold advection through northeast winds this morning.
1113 AM CST Fri Nov 24 2023 (The rest of today ) A cold front moved through overnight leaving much cooler air in place with continued cold advection through northeast winds this morning.
1113 AM CST Fri Nov 24 2023 (Today through Saturday) A cold front is draped across Oklahoma and Kentucky, then northeastward through New York this morning. There is a small chance of seeing some light rain/sprinkles across the area through the first half of the morning, as an upper low moves through. The cold front will begin to push into the area by midday and then generally be positioned south of the Interstate 85 corridor by sunset. Generally we expect just clouds to accompany this front as the airmass is dry on the backside of the upper low that is swinging through right now. As we move through the day Saturday, high pressure will be in control. Look for the high pressure to slide east and will increase the easterly flow across the area.
1136 AM CST Fri Nov 24 2023 Cooler than normal temperatures will be seen through the weekend.
1031 AM MST Fri Nov 24 2023 Latest 500 mb analysis shows an upper low centered over the Intermountain West - at the border of UT/NV/ID. As upper ridging nudges east, it will allow snow to our west to enter the area. The upper low will slowly progress east-southeastward over Utah today. The upper level low nearing the area Saturday morning will reinvigorate snow chances. Snow intensity also may increase for portions of the Tri-State Area, dependent upon position of the low. Snow chances will begin to wane from west to east as we head into Saturday evening with drier air on the backside of the low. Saturday night the upper trough axis will push east of the area with clearing skies behind it.
Didn't make many major adjustments to highs, with warmer (mid 60's) possible for western areas and staying quiet/dry and cool tonight with a few lingering clouds around. KLG (Today through Saturday) Clouds will be slow to move out today but we should get enough sun to warm our high temps into the low to mid 60s. Clearing late today will set up a very good radiational cooling night causing lows to fall well into the lower 40s and a few upper 30s look to be possible over the northern most portions of SW Mississippi. No freezing issues yet but that can't be much farther down the road.
1200 PM CST Fri Nov 24 2023 (Today through Saturday) An upper level low will be digging into the Four Corners today and opening into the southern Rockies and Plains on Saturday. High temperatures Saturday are forecast to be cooler, especially west of I-35 where clouds are thicker.
(This evening through Saturday) Much cooler temperatures spread over the area today following a cold front early this morning. A short wave trough will move out of the Great Basin and into the southern Rockies tonight into Saturday. Moisture will be limited to the lowest 200mb or so of the atmosphere. The lowest 200mb of the atmosphere will only rise to approximately -10C leaving small chances of ice nuclei being introduced into the cloud layer. Surface temperatures will likely fall below 0C in the extreme southern Texas Panhandle which will favor freezing drizzle and/or freezing rain.
1054 AM CST Fri Nov 24 2023 Cooler than normal temperatures will be seen through the weekend.
Otherwise for Tonight and Saturday, an uneventful period with flat upper ridging and surface wedge developing just east of the Appalachians.
134 PM MST Fri Nov 24 2023 Satellite imagery this afternoon showed a large upper low over the NV/Utah border with strong diffluent flow across the central Rockies. The upper low to our southwest will track through Colorado over the next 24-36 hrs and open up (weaken) as it does so.
Numerical models show the low scooting east into CNTRL Colorado overnight with rapidly decreasing precipitation potential and to a lesser extent cloud cover over SE Idaho. As the clouds aloft clear tonight, the low level moisture will remain either in the form of stratus or fog. The fog and low clouds will likely take some time to burn off tomorrow with light surface flow expected on the east side of an upper ridge expanding along the NW coast.
Expecting much of the same for the remainder of the day with warming temps into the low to mid 60s.
CIMMS analyses place a mean-layer ridge near the Greater Antilles. The Keys are within the northwestern flank of the mean- layer ridge. At the surface, a broad and diffuse trough axis is across the Keys, which has been a focus for scattered showers. 5" for areas south of the Seven Mile Bridge, with much of the island chain picking up more than a quarter inch. Temperatures are in the 70s with all the cloud cover, and dewpoints remain in the lower 70s.
Most of the freezing drizzle has stopped, with just a few flurries remaining. However, it is a short event and the best upper level dynamics are to our east, thus snow accumulations do not look to be on the high side at this time, with a general 1 to 3 inches possible in Kings Hill/Big Snowy mountain areas.
A ridge of high pressure will result in quiet weather for the first half of the week. Additional showers of rain in the valleys and snow on the mountains are possible today in eastern Mohave county as the low pressure system moves east. Highs today are cooler than yesterday with temperatures several degrees below average for this time of year.
Some broad mid-level ridging is expected to move eastward tonight and into tomorrow over the region before quickly sliding off the Atlantic Coast tomorrow night.
As the previous shift stated, this will be conducive for radiational cooling, resulting in lows dipping into the lower to mid 30s for many areas later tonight into early Saturday morning.
And this is occurring below the lowest elevation of the radar beam which gives a false perception, or a stronger looking radar return, of what is actually reaching the ground. Large area of mid level cloudiness across the Florida peninsula will persist tonight and Saturday as isentropic lift over the frontal boundary/cooler boundary layer airmass persists.
* The Winter Storm Warning for north central Kansas was cancelled and replaced with a Winter Weather advisory as the upper level low has trended a bit further south.
447 PM CST Fri Nov 24 2023 (Tonight) A cold front pushed through the TN Valley earlier this morning bringing a few drops of rain in an otherwise dry passage with little fanfare. As a result, temperatures have warmed into the low 60s for most areas on this pleasant start to the weekend. Temperatures will drop to the low to mid 30s.
556 PM CST Fri Nov 24 2023 (This evening through Saturday Night) High pressure will rebuild behind a weak frontal boundary that is forecast to move through the region later today. North winds behind the front will usher in a reinforcement of cooler air with overnight lows forecast to fall into the mid to upper 30s. High temperatures on Saturday will average in the lower 60s. The warming trend will also be aided by increasing cloud-cover ahead of an approaching upper-trough and surface front. Otherwise, showers will increase in coverage late Saturday night as the cold front pushes through the region.
520 PM CST Fri Nov 24 2023 (Tonight through Saturday night) A broad upper level trough covers the western US this afternoon with west-southwesterly flow over Texas. The low level flow is from the south to southeast. Temperatures today are five to ten degrees warmer today than yesterday. At the surface an area of low pressure will develop along the South Texas coast keeping winds across our CWA from the east. Temperatures tonight will be warmer with lows in the 40s and 50s. Temperatures will be cooler due to cloudy skies and isolated rain. Saturday night a cold front will move through Central Texas and showers will develop ahead of the front and move into our eastern counties.
The southeasterly winds, out over the eastern plains, have made a pretty decent Denver cyclone centered just west of DIA at this time. Models show the upper closed low to push across west central Colorado later tonight, then right across our CWA through mid Saturday afternoon. The QG Omega fields show only weak upward vertical velocity with the upper low for the CWA overnight into Saturday morning. The low level wind fields show weak upslope flow over the plains overnight and much of Saturday. The exception will be the high mountains where pops will be in the 60-90% range overnight and Saturday. For temperatures, lows tonight should be in the single digits in most areas, with even colder readings in the high mountains. We'll have a fairly quiet week as an upstream ridge drifts east over the northern Rockies.
High clouds will continue to keep temperatures slightly warmer in spots. Otherwise for Tonight and Saturday, an uneventful period with flat upper ridging and surface wedge developing just east of the Appalachians.
High pressure is featured over the region leading to a mix of sun and clouds. The strong high pressure is leading to synoptically forced breezy conditions due to a tight pressure gradient. High pressure will begin to broaden and the pressure gradient will follow suit, allowing the winds to slowly relax.
543 PM CST Fri Nov 24 2023 (Tonight through Saturday night) Short term models develop a weak coastal trough off the lower Texas coast. The trough evolves from a northward moving warm front along with slowly veering Gulf winds resulting from retreating high pressure.
543 PM CST Fri Nov 24 2023 Tonight & Saturday: Cool and dry Pleasant but cool start to the holiday weekend as large area of high pressure remains over north Central states.
609 PM CST Fri Nov 24 2023 Tonight through Saturday: A sprawling area of continental polar high pressure centered over the midwestern states and extending southward into our region will control weather over the forecast area through the near term. For tonight, areas of frost could develop, especially if skies clear out more than expected, but observed temperatures should stay above freezing.
Otherwise, gusty north-northeast winds will impact area ridges into tonight and tomorrow morning. Northwest California continues to be between a ridge in the Northeastern Pacific and a trough over the Intermountain West. Gusts from 30 to 35 mph could occur into this evening along the higher ridges of the region. The highest gusts are expected around the mountains of interior Del Norte County, the South Fork Mountain, the higher ridges of southern Trinity County, and higher terrain areas in eastern and southern Lake County. The highest winds should subside into tomorrow morning. The ridge will continue to cause sinking air contributing to dry conditions across the region. In addition, the polar airmass associated with the trough will continue to usher colder air into Northwest California.
Will keep an eye on readings, but should be less cold than last night and lows in the low to mid teens seem good.
PIREPs indicate persistent cloud shield is rather shallow, and with drier air working its way in throughout the lower levels the current thinking is that the cloud shield should begin to mix out over the next several hours. Most of the freezing drizzle has stopped, with just a few flurries remaining. However, it is a short event and the best upper level dynamics are to our east, thus snow accumulations do not look to be on the high side at this time, with a general 1 to 3 inches possible in Kings Hill/Big Snowy mountain areas.
Nighttime temperatures will cascade below freezing overnight in the San Joaquin Valley and Kern County desert.
(Tonight) A cold front pushed through the TN Valley earlier this morning bringing a few drops of rain in an otherwise dry passage with little fanfare. As a result, temperatures have warmed into the low 60s for most areas on this pleasant start to the weekend. Temperatures will drop to the low to mid 30s.
(Now through Saturday) Zonal to west-southwesterly flow aloft will prevail through the period as our region becomes situated between two troughs; one moving into the western Atlantic and the other pushing into the Great Plains from the Rockies. At the surface, strong high pressure to our north will continue to build into the local region.
627 PM MST Fri Nov 24 2023 Satellite imagery shows an upper low over UT/CO drifting slowly eastward, as we transition to anticyclonic northerly flow and drying. JKL Satellite imagery this afternoon showed a large upper low over the NV/Utah border with strong diffluent flow across the central Rockies. The upper low to our southwest will track through Colorado over the next 24-36 hrs and open up (weaken) as it does so.
542 PM EST Fri Nov 24 2023 High pressure will build into the region for Saturday, bringing mostly sunny skies.
Many spots will get to freezing and a few just below.
522 PM CST Fri Nov 24 2023 (This afternoon through Saturday Night) It's not a bad Black Friday across the area with some scattered high clouds filtering the sunlight and temperatures in the low to mid 50s. Clouds will start building in during the afternoon ahead of trough that will approach the area late Saturday night.
The main focus of the forecast continues to be on the western trough as it opens and ejects into the Central CONUS on Saturday.
Temperatures will fall into the 30s areawide by tomorrow morning as weak high pressure builds into the region from the north.
228 PM PST Fri Nov 24 2023 Gusty winds diminishing this afternoon; cooler daytime temperatures through the weekend.
520 PM CST Fri Nov 24 2023 (This evening through Saturday) Much cooler temperatures spread over the area today following a cold front early this morning. A short wave trough will move out of the Great Basin and into the southern Rockies tonight into Saturday. Moisture will be limited to the lowest 200mb or so of the atmosphere. The lowest 200mb of the atmosphere will only rise to approximately -10C leaving small chances of ice nuclei being introduced into the cloud layer. Surface temperatures will likely fall below 0C in the extreme southern Texas Panhandle which will favor freezing drizzle and/or freezing rain.
Persistent high pressure will build as well keeping the region dry and stagnant with little variation in temperatures each day. Today and tomorrow: Main concern today and tomorrow is freezing fog with the ridge formation. We could see additional freezing fog tonight and tomorrow night in our northern valleys, along major rivers, and in the Palouse, L-C Valley, and parts of the central Basin.
A slow moving low pressure system will cross the region through early Saturday.
1040 PM CST Fri Nov 24 2023 (This evening through Saturday) Much cooler temperatures spread over the area today following a cold front early this morning. A short wave trough will move out of the Great Basin and into the southern Rockies tonight into Saturday. Moisture will be limited to the lowest 200mb or so of the atmosphere. The lowest 200mb of the atmosphere will only rise to approximately -10C leaving small chances of ice nuclei being introduced into the cloud layer. Surface temperatures will likely fall below 0C in the extreme southern Texas Panhandle which will favor freezing drizzle and/or freezing rain.
255 AM EST Sat Nov 25 2023 A high pressure ridge will extend south into the Carolinas today.
* Farther south and east outside of the advisory, mainly rain latter half of the afternoon through tonight, with a brief transition to wintry mix of snow and light freezing rain as precipitation ends late. This layer of warmer air is not much warmer than 1C, but somewhat deep, so there is uncertainty whether we will see full melting effects that will result in freezing rain. In areas of lighter precipitation rates, we could see very light freezing rain or graupel, but where rates are higher, mainly snow. North and west of this line, we expect mainly snow, while near and just southeast of this line, a mixture of freezing rain and snow. As pacific cold front surges west to east this evening and overnight, precipitation should promptly cease from west to east from about 10 pm through 5 am.
/15/ Tonight through Saturday: A sprawling area of continental polar high pressure centered over the midwestern states and extending southward into our region will control weather over the forecast area through the near term. For tonight, areas of frost could develop, especially if skies clear out more than expected, but observed temperatures should stay above freezing.
153 AM MST Sat Nov 25 2023 Upper level northwest flow will set up over the region as the low to the south continues to weaken and move east.
(The rest of tonight) High clouds will continue to increase as upper level low slowly moves across the Central Rockies tonight into Saturday.
A slow moving cold front has become nearly west-east oriented this evening, but should start to take more of a track to the southeast as the trough axis passes by later tonight. These bands, the cold front and the trough will push east and then southeast for the rest of tonight, the Chuska Mountains starting to dry out after Midnight MST and then the focus will move to the White Mountains through late Saturday morning. Much colder and drier air follows this system into Saturday, some flash freezes are possible tonight as the skies clear in the high county.
1040 PM EST Fri Nov 24 2023 High pressure will build into the region for Saturday, bringing mostly sunny skies.
1213 AM CST Sat Nov 25 2023 Tonight through Saturday: A sprawling area of continental polar high pressure centered over the Midwestern states and extending southward into our region will control weather over the forecast area through the near term. For tonight, areas of frost could develop, especially if skies clear out more than expected, but observed temperatures should stay above freezing.
Highs will range from the upper 40s/nr 50 along and north of the parkways, to the low/mid 50s south ans southeast. Closed upper low currently located near the Four Corners this morning will open up and be absorbed by a deepening trough dropping out of Canada later today.
1056 PM CST Fri Nov 24 2023 (Tonight through Saturday night) Short term models develop a weak coastal trough off the lower Texas coast. The trough evolves from a northward moving warm front along with slowly veering Gulf winds resulting from retreating high pressure.
1101 PM CST Fri Nov 24 2023 Tonight & Saturday: Cool and dry Pleasant but cool start to the holiday weekend as large area of high pressure remains over north Central states.
1101 PM EST Fri Nov 24 2023 High pressure will build into the region for Saturday, bringing mostly sunny skies.
1010 PM CST Fri Nov 24 2023 (Tonight through Saturday night) A broad upper level trough covers the western US this afternoon with west-southwesterly flow over Texas. The low level flow is from the south to southeast. Temperatures today are five to ten degrees warmer today than yesterday. At the surface an area of low pressure will develop along the South Texas coast keeping winds across our CWA from the east. Temperatures tonight will be warmer with lows in the 40s and 50s. Temperatures will be cooler due to cloudy skies and isolated rain. Saturday night a cold front will move through Central Texas and showers will develop ahead of the front and move into our eastern counties.
1030 PM CST Fri Nov 24 2023 (The rest of tonight) High clouds will continue to increase as upper level low slowly moves across the Central Rockies tonight into Saturday.
Winds will remain light and predominantly out of the northeast, being driven by a high pressure system across the eastern United States. Expect overnight lows to fall in the mid 70s with dew points not much lower, in the lower 70s. A ridge across the eastern United States will maintain mostly light northeasterly breezes across Keys waters.
(Today) A dry and seasonable day is ahead with brief upper level ridging across the southeast U.
The first will be a fast moving cold front on Sunday that probably won't produce much more than a tenth of an inch of rain.
- Northwest winds will increase behind a cold front Sunday. A stronger trough will skirt along the Canadian border early Sunday, bringing another round of light snow area wide. As the strong cold front moves across Minnesota into Wisconsin, northwesterly winds will increase with gusts of 35-40 MPH expected during the afternoon and evening. Ceilings will continue to drop through the day today, mainly in response to an organized low pressure system moving across the mid-Mississippi River Valley with a large cloud shield extending northward.
This afternoon and this evening look to be quiet, then a cold front will track across the CWA overnight into early Sunday morning. Fairly strong winds will accompany the cold front, with some gusts in excess of 35 mph possible overnight tonight into the day Sunday. KEY MESSAGES: - Mostly dry forecast with slightly above normal temperatures A northwest flow pattern will be in place through the end of the work week, although through the course of the week the eastern CONUS trough moves on and the pattern de-amplifies.
9 AM EST temperatures are in the low to mid 30s. Highs will range from the upper 40s/nr 50 along and north of the parkways, to the low/mid 50s south ans southeast. Closed upper low currently located near the Four Corners this morning will open up and be absorbed by a deepening trough dropping out of Canada later today. As the trough approaches, warm air advection will increase over the area providing some isentropic lift. Temperatures will not be nearly as cold due to the increased cloud cover as well as the warmer air advection. Lows will likely occur earlier in the overnight hours into ranging from the low/mid 30s across southern IN and northern KY, with mid/upper 30s from the Bluegrass and southward towards the KY/TN border.