Aikyam-Lab/Synoptic-Bench huggingface dataset:
Highs today should peak in the lower 60s for Elkhart to upper 50s elsewhere. This should keep temperatures from falling below freezing along and south of Highway 50. The northwest zones may still see below freezing lows as we head into the morning hours. Ageopstrophic curvature divergence will lead to rapid cyclogenesis through the day in the low to mid levels of the atmosphere.
Low temperatures will be milder tonight, and mainly in the lower to middle 20s. A cold front will move through the northwest part of the forecast area in the afternoon, and may result in an increase in clouds late in the day.
Breezy northwest winds will be in place behind the low on Sunday. Low pressure will rapidly eject eastward tonight.
A low pressure system will move through southern Nevada today bringing a mix of rain and snow to central Nevada.
343 AM CST Sat Feb 22 2020 Upper air analysis shows the region transitioning to split flow aloft with a long wave trough digging into the southwest CONUS and zonal flow over our region.
327 AM CST Sat Feb 22 2020 (Today and Tonight) Another quiet day, with warmer temperatures. Upper level ridging will move over Texas as a low moves into souther California. The increased southwest flow in the southern Rockies will result in strengthening lee troughing in northeastern New Mexico and the Texas Panhandle area. Partly to mostly cloudy conditions will continue into the overnight hours, along with southerly low level flow, resulting in warmer overnight lows in the mid to upper 40s.
This will bring a dry cold front across the forecast area this evening with cooler temperatures on Sunday. Temperatures will be warm again today ahead of the cold front especially in areas where the snow cover has melted.
612 AM EST Sat Feb 22 2020 High pressure will remain across the area this weekend with sunny skies and light winds expected.
Transitory ridging across the state will ensure continued dry conditions today. Early day sky clear with thickening cirrus as high cloud cover spills over the upper ridge axis. A subtle uptick in this afternoon's moisture will assist in pushing today's temperatures up to around 60 F, or a few degrees warmer than yesterday.
Dry high pressure in place will maintain VFR, with no more than some scattered mid and upper level cloudiness overhead. High pressure will continue to slide east today allowing for southerly flow to develop this afternoon. Warmer temperatures are on tap for tonight and Sunday as mid and high level clouds stream across the area with southerly flow bringing a little bit more moisture into the area.
Today Through Sunday Night Another dry day is in store for the area this Sat as high pressure moves east of the state.
402 AM EST Sat Feb 22 2020 High pressure will build into the region through the weekend, pushing offshore Sunday night.
Otherwise, srn stream ridging is evident over the cntrl/srn Rockies and Plains, with an upstream upper low slowly approaching the CA coast. Attendant cold front crosses the nrn Plains tonight, dropping temps closer to normal tomorrow. However, 850 mb temps rebound rather quickly late tomorrow aftn/eve as WAA kicks in ahead of next trof.
/issued 339 AM CST Sat Feb 22 2020/ A 1034 mb arctic high pressure system is located over the region this morning. Beautiful day on tap for the Mid-South with high pressure slipping east and southerly winds developing. Expert plenty of sunshine and temps climbing into the lower 50s. Clouds increasing after midnight and light southerly winds will keep temps above freezing at most locations tonight. An upper low now moving onto the SOCAL coast will move across the SW US and into the southern plains on Sunday.
High clouds will continue to push across South Central Texas through the short term forecast period as an upper level low pressure system west of California moves to the northeast into the four corners region. For Sunday, expect a warmer day with highs in the mid 60s to upper 70s along the coastal plains and southwest part of the local area.
The center axis of this high pressure will slowly pivot east into the mid Atlantic states into Sunday, with some weak southerly return flow developing today, then a bit better on Sunday. Highs today and Sunday will be mild in the low to mid 50s today, then mid to upper 50s on Sunday. Lows tonight will feature a modest ridge/valley split with valley locations dipping at least into the upper teens. The initial weather maker in the extended will be a large and fast moving area of low pressure that will take shape over the south central Plains tonight and tomorrow.
953 AM EST Sat Feb 22 2020 High pressure will build into the region through the weekend, pushing offshore Sunday night.
354 AM CST Sat Feb 22 2020 Today and Tonight: Dry weather will continue through the short term period as a ridge axis continues to slide east into the Mississippi River Valley. Afternoon high temperatures will be noticeably warmer today in the mid 50s to low 60s as 850mb temperatures warm within a weak warm air advection regime. Nonetheless, overnight lows will still drop into the low to upper 30s.
Canadian high pressure had shifted east, allowing for a return of southerly breezes. Despite the warmer wind, temperatures fell into the 20s early this morning. Afternoon highs are expected to range from the low to middle 50s. High clouds blowing off the western ridge will stream overhead through most of the day.
523 AM EST Sat Feb 22 2020 High pressure will maintain dry weather through the weekend, with a warming trend in temperature.
Snow levels continue to remain high ahead of the cold front with values generally above 8000 feet. Snow levels will drop through this evening allowing for snow across the higher elevations after 8 pm tonight. This also will allow for some wrap around convection to occur through the day Sunday, however if the low does move just a few tens of miles north or south, significant changes to precipitation amounts could occur as the system transits the four corners region.
/issued 327 AM CST Sat Feb 22 2020/ (Today and Tonight) Another quiet day, with warmer temperatures. Upper level ridging will move over Texas as a low moves into souther California. The increased southwest flow in the southern Rockies will result in strengthening lee troughing in northeastern New Mexico and the Texas Panhandle area. Partly to mostly cloudy conditions will continue into the overnight hours, along with southerly low level flow, resulting in warmer overnight lows in the mid to upper 40s.
524 AM CST Sat Feb 22 2020 Upper air analysis shows the region transitioning to split flow aloft with a long wave trough digging into the southwest CONUS and zonal flow over our region.
Surface ridging will continue this morning with mostly sunny skies except for a few high clouds. During the afternoon, the ridge should begin to weaken and shift eastward with winds beginning to turn around to the south. The airmass will moderate tonight into Sunday further as we continue with more onshore warmer flow along with clouds increasing tonight into Sunday. That in combination with our ridge weakening and moving east will help a boundary to develop along the Gulf Coast and move northward as a warm front into Mississippi and Southern Alabama late in the day.
Sprawling high pressure was centered over the lower Mississippi River Valley and Ohio River Valley this morning, with surface ridging extending from the western Gulf of Mexico all the way up to Cape Cod. Across the mid-Mississippi River Valley, we were locked in southwesterly flow behind the high with a dry air mass in place and no clouds (00z DVN sounding PWAT came in at only 0. Temperatures faired warmer than previous days, and values as of 2 AM ranged from 25 in Fairfield and Independence, to 32 in Muscatine. Discussion: No sensible weather impacts are expected in the short term period as we remain locked under southwesterly flow and just behind the high. Further north, highs will be colder in the low 40s due to influence from the 1-3" snowpack.
258 AM MST Sat Feb 22 2020 The ridge of high pressure that has been responsible for the recent clear, calm weather starts to break down today. The action picks up on Sunday afternoon/evening as a more pronounced trough of low pressure traverses the Pacific Northwest. Moisture and an associated cold front will arrive by Sunday night.
754 AM EST Sat Feb 22 2020 High pressure will maintain dry weather through the weekend, with a warming trend in temperature.
* None Temperatures and dewpoints a solid 10 degrees warmer than 24 hours ago as southwest return flow continues around high pressure currently settling over the Southeast.
Cooler temperatures on Sunday should produce mostly snow, but there may be a rain/snow mix near Lake Superior at times.
520 AM MST Sat Feb 22 2020 Satellite imagery shows a band of lowering mid level clouds streaming in from the southwest this morning as moisture continues to increase ahead of a well advertised closed low pressure system currently coming onshore over southern California. With energy focusing a little further north than yesterday's thinking, 1/4 inch rainfall amounts in the lower valleys should be a little more widespread (falling across much of the forecast area). Thanks to the continued southwest flow on the front side of the low, highs remain fairly similar to yesterday across much of the CWA.
Otherwise, early morning GOES-East water vapor imagery/RAP 500mb analysis shows a broad ridge across the central CONUS with a weak mid-level trough moving through eastern MT. Partly cloudy skies expected tonight as that aforementioned mid- level wave and weak surface cold front work into the area. Cold air advection slated now for Sunday as cold front slides through associated with low pressure passing to the north over western Ontario. High pressure builds in from the Northern Plains Sunday night with lows falling into the teens and 20s.
These values are between the 50th and 75th percentiles for temperatures, and may still be a little on the low side. After a milder night tonight, highs Sunday should reach into the lower to middle 40s over most of the area. Again, these may be a bit on the low side, being between the 50th and 75th percentiles.
339 AM CST Sat Feb 22 2020 A 1034 mb arctic high pressure system is located over the region this morning. Beautiful day on tap for the Mid-South with high pressure slipping east and southerly winds developing. Expert plenty of sunshine and temps climbing into the lower 50s. Clouds increasing after midnight and light southerly winds will keep temps above freezing at most locations tonight. An upper low now moving onto the SOCAL coast will move across the SW US and into the southern plains on Sunday.
924 AM EST Sat Feb 22 2020 Chilly morning this morning, with a N/NE wind at 10 to 15 mph producing some below freezing wind chills. Current forecast is on track, with highs reaching into the lower to mid 60s north to the lower to mid 70s south this afternoon.
The center of the high will begin to shift eastward today with temperatures responding and warming back into the 50s areawide. Temperatures Sunday morning will warm a few degrees compared to this morning, though most areas will still settle near freezing.
/TW/ Today and Tonight: Dry weather will continue through the short term period as a ridge axis continues to slide east into the Mississippi River Valley. Afternoon high temperatures will be noticeably warmer today in the mid 50s to low 60s as 850mb temperatures warm within a weak warm air advection regime. Nonetheless, overnight lows will still drop into the low to upper 30s.
Current satellite and upper-air analysis shows a mid-level closed low centered off the coast of Southern California. Models agree that this low will slowly move eastward today, while continuing to pump subtropical moisture into the area. Snow levels are still forecast to drop with the arrival of a cold front this afternoon/evening. Snow levels continue to remain high ahead of the cold front with values generally above 8000 feet. Snow levels will drop through this evening allowing for snow across the higher elevations after 8 pm tonight. This also will allow for some wrap around convection to occur through the day Sunday, however if the low does move just a few tens of miles north or south, significant changes to precipitation amounts could occur as the system transits the four corners region.
237 PM CST Sat Feb 22 2020 High pressure centered over Kentucky will continue to slowly move away from the area. As it does so southwest winds will pick up and bring warmer air and moisture to the region. With sunshine, mixing, and contiunued warm advection at 700-850 mb, highs Sunday should be several degrees warmer than today. Upper low now moving into the southern California coast tonight will continue eastward through the weekend interacting with a significant IVT anomaly out ahead of it.
A ridge of high pressure is in the process of moving across Middle Tennessee, so look for surface winds to shift around to the south during the next several hours.
928 AM CST Sat Feb 22 2020 After a chilly start this morning, temperatures have climbed up above freezing thanks in part to an abundance of sunshine. Overnight lows will be able to fall into the lower 30s before a disturbance brings an increase in cloud cover. Dry conditions will persist into the first half of Sunday, however as a warm front lifts northward, rain will return to the forecast.
On Sunday another short wave trough will straddle the International Border and approach western Great Lakes.
After a chilly start this morning, temperatures have climbed up above freezing thanks in part to an abundance of sunshine. Overnight lows will be able to fall into the lower 30s before a disturbance brings an increase in cloud cover. Dry conditions will persist into the first half of Sunday, however as a warm front lifts northward, rain will return to the forecast.
1017 AM MST Sat Feb 22 2020 Satellite imagery shows a band of lowering mid level clouds streaming in from the southwest this morning as moisture continues to increase ahead of a well advertised closed low pressure system currently coming onshore over southern California. With energy focusing a little further north than yesterday's thinking, 1/4 inch rainfall amounts in the lower valleys should be a little more widespread (falling across much of the forecast area). Thanks to the continued southwest flow on the front side of the low, highs remain fairly similar to yesterday across much of the CWA.
300 PM CST Sat Feb 22 2020 Mid-afternoon sfc analysis shows high pressure centered over the sern CONUS and ridging swwd. Meanwhile, a sfc trof is noted extending from low pressure over the nrn Plains to another low over the srn Plains and swwd toward the srn Rockies. Water vapor imagery shows ridging now in place over the cntl CONUS with plenty of moisture now spilling over it and across the forecast area. Basically another 24 hours of dry weather although warming/moistening will continue as a srly low-level flow gradually deepens with high pressure pushing farther ewd. Mins tonight will be quite a bit warmer than this morning (although still slightly below normal) with much higher dewpoints and more cloud cover in place.
/JNE/ Prior discussion below: Today and Tonight: Dry weather will continue through the short term period as a ridge axis continues to slide east into the Mississippi River Valley. Afternoon high temperatures will be noticeably warmer today in the mid 50s to low 60s as 850mb temperatures warm within a weak warm air advection regime. Nonetheless, overnight lows will still drop into the low to upper 30s.
1203 PM CST Sat Feb 22 2020 Mid/high clouds are continuing to move in from the NW today with the low-level winds becoming a bit more SE. This along with the approach/pass- age of a well-defined upper low and its associated cold front will also aid in the development of increasing clouds/POPs by tomorrow. Transitory ridging across the state will ensure continued dry conditions today. Early day sky clear with thickening cirrus as high cloud cover spills over the upper ridge axis. A subtle uptick in this afternoon's moisture will assist in pushing today's temperatures up to around 60 F, or a few degrees warmer than yesterday.
Southwest winds will increase to 12 to 20 mph, with higher gusts, during the afternoon hours, as a lee trough develops across the Texas Panhandle. The highest winds speeds will be across the western Big Country and Concho Valley. A few showers will be possible Sunday, mainly across the Big Country and Heartland, as an upper level low across the Four Corners region approaches the Panhandle.
Overnight, another wave with move through the state along with a surface cold front. Highs on Sunday will be a bit cooler, mainly in the 30s.
1119 AM CST Sat Feb 22 2020 High pressure centered over Kentucky will continue to slowly move away from the area. As it does so southwest winds will pick up and bring warmer air and moisture to the region. As high pressure to our southeast moves away the surface pressure gradient will gradually increase and winds will become gusty as it advects warmer temps into the forecast area. A broad high pressure ridge across the south central U. will keep skies mostly clear through tonight, while breezy southwest winds continue to bring warmer air into central IL. The upper level trough currently moving onto the southern CA coast will progress across the southern U.
247 PM EST Sat Feb 22 2020 Cold and dry Canadian high pressure will dominate this weekend.
A low level ridge over the Southeast States will keep Gulf moisture away from Alabama until Sunday night. Temperatures tonight will be much warmer than this morning as winds in the 1000-850mb layer increase from the south. Counties east of I-65 should bottom out just below freezing by sunrise Sunday, with middle 30s west of I-65. Strong warm air advection aloft ahead of the next short wave trof will result in light showers developing over northern Mississippi Sunday afternoon.
Mid/high clouds will continue to increase through tonight as subtropical moisture overspreads the area ahead of upper low, currently just off the southern CA coast.
Increasing clouds overnight in advance of a developing upper level low over the southwest US is expected. the upper level low will continue to track across Kansas and northern Oklahoma.
An upper level low pressure system will begin to affect the region towards the end of this fcst cycle. Temperatures expected to warm into the lower- to mid-60s over most sections in spite of increasing mid- and high-level clouds. On Sunday afternoon and evening compact closed low passes across northern sections.
142 PM MST Sat Feb 22 2020 Upper level analysis shows nearly zonal/weakly ridged flow over the central states, with a low pressure system moving over CA, and an upper wave pushing into Alberta. The Canadian wave will sweep eastward along the US/Canadian border tonight, dragging a weak, dry cold front through the northern plains. The only noticeable changes will be a wind shift to the northwest and slightly cooler temperatures for Sunday; however, models are showing warmer temps than previously, with highs still generally in the 40s. Aforementioned CA upper low will slide well to the south of the Dakotas Sunday/Sunday night.
Surface ridging is centered over the Tennessee Valley, Southeast United States, and eastern sections of the Lower Mississippi Valley this afternoon.
Upper air analysis shows the region transitioning to split flow aloft with a long wave trough digging into the southwest CONUS and zonal flow over our region.
Overnight low temperatures forecast to fall into the low 40s tonight with highs around 60 on Sunday and low temperatures Sunday night in the low to mid 50s.
Otherwise fcst looks largely on track in ridge dominated near term. The center of the high will begin to shift eastward today with temperatures responding and warming back into the 50s areawide. Temperatures Sunday morning will warm a few degrees compared to this morning, though most areas will still settle near freezing.
256 PM CST Sat Feb 22 2020 The ArkLaMiss is currently being influenced by an upper level ridge and a strong high pressure that is now over over the Louisiana coastal line. This upper level ridge and high pressure will continue to shift east allowing the region to be dry the rest of the day, tonight and for part of the day Sunday. The previous mentioned upper-level ridge will get replaced with an upper-level long-wave trough which will help increased moisture bring the return of rainy weather late Sunday night.
Tomorrow, a stronger low pressure system will move through the westerly flow, swinging a cold front through the forecast area with mountain snow and lower elevation rain.
202 PM CST Sat Feb 22 2020 A relatively enjoyable day out there today with plenty of sunshine and just about everybody climbing into the low 50s. Skies should remain mostly clear tonight, allowing for temperatures to drop back towards the freezing mark, but not near as cold as last night.
Meanwhile, strong upper low moving onshore of western U.
High pressure will continue to push off to our southeast through Sunday while an Alberta Clipper system moves by to our north Sunday afternoon and evening. Forecast highs Sunday in the low and mid 40s.
1224 PM EST Sat Feb 22 2020 High pressure will maintain dry weather through the weekend, with a warming trend in temperature.
The compact upper level low was currently churning over Las Vegas, NV bringing thunder and widespread heavy rain to the southwestern US. The only negating factor for the winds will be the high level cloud cover. Strong winds will continue through Sunday night as a cold front moves through as a tight pressure gradient remains over the area.
This evening, temperatures will fall below freezing which will lead to refreezing of melted snow and the potential for slippery spots on roads, especially secondary and untreated roads. Most places should see some sun during the afternoon, and then clouds will start moving back into central Wisconsin as a cold front approaches the state.
310 PM EST Sat Feb 22 2020 Ongoing low level warm air advection within the southwest return flow associated with the large high anchored over the TN Valley has allowed temps to rise into the low to mid 40s. While the airmass will remain very dry tonight with sfc dewpoints around 20F, the strength of the low level wind fields will limit the degree of decoupling in the nocturnal boundary layer. The result will be a little warmer nighttime mins (around 30) in comparison to the last several nights. A warmer Sunday temp forecast (highs around 50) seems more reasonable, which in turn will support somewhat gusty winds (25-30 MPH).
312 PM EST Sat Feb 22 2020 High pressure continues to drift off to the southeast this afternoon as upper level ridging nudges in from the west. Temperatures will drop quickly after sunset given the dry air and clear skies in place, but light winds will keep overnight lows a little warmer compared to this morning.
Started a little warmer than yesterday, but with mix of cloud and sun, should result in similar temperatures as yesterday. This will bring a dry cold front across the forecast area this evening with cooler temperatures on Sunday. Temperatures will be warm again today ahead of the cold front especially in areas where the snow cover has melted.
Highs today should peak in the lower 60s for Elkhart to upper 50s elsewhere. This should keep temperatures from falling below freezing along and south of Highway 50. The northwest zones may still see below freezing lows as we head into the morning hours. Ageostrophic curvature divergence will lead to rapid cyclogenesis through the day in the low to mid levels of the atmosphere.
The forecast calls for highs near 70 for most of the islands, except for the Upper Keys where northeast winds off of the warmer Atlantic waters should allow highs to reach the mid 70s.
Mostly sunny and warmer today with light winds. Increasing clouds with conditions becoming IFR/MVFR by the afternoon due to rain and snow showers associated with a passing cold front.