Aikyam-Lab/Synoptic-Bench huggingface dataset:
650 PM CDT Thu Apr 6 2023 (This evening through Friday) An upper level trough currently centered over southern California and Arizona will slowly approach West Central Texas over the next 24 hours. Showers and a few thunderstorms are possible overnight, mainly for areas south and east of a Clyde to Mertzon line, with the highest rain chances across our southeast counties. With the approach of the aforementioned upper level trough, rain chances will increase across the area on Friday, with the highest PoPs continuing across the northwest Hill country and decreasing as you head north and west. Expect highs in the low to mid 60s across the northern half of the area to the mid to upper 50s across the southern half of the area.
733 PM EDT Thu Apr 6 2023 Incoming high pressure over the region will continue to bring mostly to party cloudy skies, along with drier conditions. Tonight will be cool with lows in the lower 30s across the forecast area.
Kuroski (Issued 409 PM CDT Thu Apr 6 2023) Tonight through Friday night: High pressure should build in tonight, leading to easing surface winds going into tonight.
714 PM EDT Thu Apr 6 2023 The passage of a cold front is ushering a colder and drier airmass that will take hold over the next two days.
1053 PM EDT Thu Apr 6 2023 A slow moving cold front will clear southeast Pennsylvania by tonight, ushering in clearing along with cooler and drier conditions overnight.
With temperatures expected to fall into the lower 30s Friday morning in central Missouri, went ahead and issued Frost Advisory. While this push of cold air lead to subfreezing temperatures this morning, clear skies and solar heating quickly increased temperatures above freezing with high temperatures expected to reach into the 50s. Clear skies tonight once again lower overnight temperatures to near freezing. The high pressure continues southeast turning low level flow back southerly.
819 PM EDT Thu Apr 6 2023 The passage of a cold front is ushering a colder and drier airmass that will take hold over the next two days.
A ridge builds today, though temperatures will continue to remain well below normal. Temperatures will largely remain near or below freezing though, so snowmelt will be fairly limited today.
Looking at the 00z RAOB this evening, heights remained fairly steady in the upper levels with weak rising heights in the low to mid levels indicating the low level ridge has strengthened slightly. The wind profile showed deep easterlies in the low to mid levels before backing to the northeast and then to the north between 500 to 300 mb and then west to northwest above 500 mb. The low to mid level ridge will continue to dominate the weather pattern overnight. From synopsis, high pressure over the central North Atlantic will produce moderate to occasionally fresh easterly breezes through Friday.
757 PM EDT Thu Apr 6 2023 A slow moving cold front will clear southeast Pennsylvania by tonight, ushering in clearing along with cooler and drier conditions overnight.
Key Messages: -Light snowfall is expected generally south of the Highway 200 corridor overnight tonight into Friday morning. At the surface, high pressure looks to build into the region, resulting in clearing skies and calming winds this evening. Latest HREF guidance indicates an area of light snowfall to impact the Highway 200 corridor southward through the overnight hours into Friday morning.
A high pressure ridge covers the region this weekend with a warming trend. Ridge axis over Nevada moves slowly downstream as the next Pacific trough approaches northern California. Nighttime temperatures will be warmer, by inasmuch 10 degrees across northern Nevada, but still below seasonal norms. As the Pacific trough moves inland, it stretches and becomes increasingly diffused as it bucks into the downstream ridge. With weakening and splitting dynamical support, the threat of precipitation diminishes as the trough reaches eastern Nevada by Friday night.
Snow showers have diminished across much of the region this afternoon despite a trough lingering overhead from the low that affected the Upper Midwest the previous two days. High pressure stretched from southern Saskatchewan into the Middle Mississippi Valley and was building eastward into the Northland. As the low moves across the region tonight into Friday, clouds will thin and winds will become light. This band will lead to a light wintry mix of rain, snow and freezing rain mainly from southern Aitkin County eastward across Pine, Burnett, Washburn, Sawyer and Price counties.
A front will cross the area tonight, brining gusty south winds of 40 to 50 mph to ridges in Humboldt and Del Norte and the Del Norte coast.
Continued convection this evening along the southern portion of a cold front draped through the region has generated an MCV type feature in the vicinity of Lake Charles, LA. High pressure enhanced by rain-cooled air has been easing southward through this afternoon and evening, and should push the front to the Gulf Coast by early morning. In the upper-levels, the right entrance region of a jet streak lies over the frontal boundary - enhancing lift and moisture convergence through the lower and mid levels. /NF/ A surface cold front is helping to fuel showers and a few storms across the area this afternoon. Thunderstorm activity should decrease as the cold front pushes south of the area by the evening, though a few rumbles of thunder may still be heard.
Clouds will continue to increase tonight ahead of an approaching upper trough. The precipitation associated with the trough will move into southeast Oregon after midnight and then across most of southwest Idaho on Friday. Temperatures will be a few degrees cooler in most areas.
737 PM EDT Thu Apr 6 2023 A slow moving cold front will clear southeast Pennsylvania by tonight, ushering in clearing along with cooler and drier conditions overnight.
Precipitation over the Oregon coast and the Cascades as well as other scattered showers will continue through the afternoon as a warm front approaches from the west, with more widespread activity expected across southern Oregon and northern California this evening and through the day tomorrow. Both precipitation chances and wind speeds will decrease as the warm front moves out of the area Friday afternoon, with the last chances of post-frontal showers disappearing in the evening.
A ridge of high pressure was situated across the area today. This will allow minimum temperatures to remain a bit more mild compared to the past couple of nights with only a few sites dipping into or around the freezing mark with no headlines planned at this time.
631 PM CDT Thu Apr 6 2023 (Through Tonight) The main concern tonight is again the potential for late season freezing temperatures in parts of northeast Oklahoma. The existing Freeze Watch will be converted to a Freeze Warning, as some of the same areas that froze last night should experience similar tonight despite the high cloud cover. Dew points remain in the low to mid 20s for much of that area, and easterly winds should drop off some this evening.
633 PM CDT Thu Apr 6 2023 (Tonight) A cold front was slowly pushing eastward across our forecast area. Even cooler further to the west with Memphis and Jackson at 49 and Corinth 52 degrees. Gradually cooler air will filter in with lows by daybreak Friday ranging from the mid/upper 40s west to mid 50s east. Along with the cooler air, chances of showers and thunderstorms will increase as we go into the late evening and overnight.
938 PM CDT Thu Apr 6 2023 The cold front has pushed well SE of the Mid-South.
Dry conditions and slightly below normal temperatures expected today as high pressure builds in out of the northwest. High pressure over the northeast CONUS will maintain dry conditions through the weekend.
334 AM EDT Fri Apr 7 2023 (Today through Saturday) South Florida will remain under the influence of an Atlantic high pressure system on Friday, which should allow for continued breezy easterly flow and generally dry and warm conditions. Temperatures will continue to rise to the lower 90s in interior/southwest Florida, while remaining in the low 80s across the East Coast. Conditions will begin to deteriorate on Saturday as the aforementioned high erodes under the influence of an approaching upper-level trough/cold front combo.
1213 AM EDT Fri Apr 7 2023 A cold front will cross the area overnight.
However, the stronger winds will continue to blow accumulations around and the higher solar angle will likely melt most accumulations on roadways, so most accumulations will go unnoticed. Lingering lake effect showers should end by Friday morning while drier air works in and surface ridging begins, shifting winds to the southwest. However, another warm front will lift towards the area into Friday night.
Despite the increased cloud cover, temperatures continue to increase today with many of the lower valleys climbing in the mid 40s to lower 50s this afternoon.
A lager area of high pressure will then build across the Great Lakes through the weekend offering continued dry weather conditions.
With dry air mixing down from aloft, have trended slightly towards warmer highs and lowered dew points through the peak heating hours. With dry air remaining in place, could see frosty conditions redevelop tonight though the stronger southeast winds will keep temperatures warmer.
Snow levels rise to 6000 feet this afternoon falling to 4000 feet Saturday morning behind a weak cold front.
An upper level ridge then builds in over the region for today bringing the start of a warming trend. This combined with a weak trough aloft though could signal perhaps a drizzle or freezing drizzle potential. Decided to place in widespread patchy fog instead to help hint of the low cloud and mist/drizzle potential. Low level moisture still looks to linger through at least the day on Saturday, as an upper level trough lifts through. Synoptic lift with this trough looks overall week. There still is the potential for drizzle/freezing drizzle with these features. The southern flow from the trough should continue warming temperatures Saturday in the 30s to 40s, with 50s southwest.
1230 AM EDT Fri Apr 7 2023 Incoming high pressure over the region will bring mainly clear skies and dry weather through this weekend.
(Today) As of early this morning, a cold front sits south of the forecast area, and have seen a noticeable drop off in temps and dewpoints during the overnight hours. The sfc front will remain to our south, but the higher moisture axis will be located along and just north of the front, keeping PoPs around 70-90% today. Temperatures will be noticeably cooler today, only topping out in the upper 50s/lower 60s this afternoon with widespread rain and dense cloud cover.
High pressure both at the surface and aloft will hold over the area today and into Saturday, with strong subsidence leading to another couple of days of max temperatures once again approaching record levels.
333 AM EDT Fri Apr 7 2023 A very weak cold front sweeps southeastward through our region early this morning. Behind the front, a high pressure ridge affects our region through this weekend as the core of the ridge moves from the Upper Midwest toward the Mid-Atlantic states. At the surface, a very weak and moisture-starved cold front sweeps SE'ward through our region prior to daybreak this morning. Behind the front, stabilizing high pressure ridging builds from the Upper Midwest. High temperatures should reach the lower to mid 40's in NW PA and the lower 40's to lower 50's in northern OH late this afternoon.
315 AM CDT Fri Apr 7 2023 After chilly early morning low temperatures ranging from the upper 20s in the Illinois River Valley to the middle to upper 30s south of I-70, ample sunshine will boost afternoon highs into the lower 60s across central Illinois today. Meanwhile a thick blanket of high clouds is keeping readings in the lower 40s across the far SE KILX CWA around Flora and Lawrenceville. Given ample sunshine efficiently heating the dry airmass, high temperatures will top out near seasonal normals in the lower 60s. Surface ridging will dominate the weather across central Illinois this weekend, resulting in plenty of sunshine and warming temperatures.
311 AM CDT Fri Apr 7 2023 Weak upper level ridging will be in place today and Saturday leading to near normal highs and below normal lows across the area.
115 AM CDT Fri Apr 7 2023 Surface cold front has nudged about 75-100 miles further southeast than this time yesterday.
The low levels are still very dry. Precipitation chances will be low for the lower elevations, given moisture will be confined to the 700mb level and higher, with dry conditions at the surface. Better chance at a few orographically-enhanced snow showers in the high country, with light and unimpactful accumulations favoring some west-facing slopes.
A weak, but building upper ridge will help to usher in the start of a warming trend today. A warm front will drape itself across the southern part of SD, pushing temps in the I-90 corridor and south up into the 50s. Per usual, snow-free areas will be markedly warmer than areas with deep snow pack as those forecast highs drop sharply across the north, topping out in the upper 20s to mid 30s. Saturday will be a bit warmer with most snow-covered areas in the upper 30s and snow free areas in the mid 40s to mid 50s.
(Today through Saturday) The cold front is right now near the office at EET. With clouds and rain on Saturday, temperatures will be significantly cooler across the area.
1252 AM CDT Fri Apr 7 2023 (This evening through Friday) An upper level trough currently centered over southern California and Arizona will slowly approach West Central Texas over the next 24 hours. Showers and a few thunderstorms are possible overnight, mainly for areas south and east of a Clyde to Mertzon line, with the highest rain chances across our southeast counties. With the approach of the aforementioned upper level trough, rain chances will increase across the area on Friday, with the highest PoPs continuing across the northwest Hill country and decreasing as you head north and west. Expect highs in the low to mid 60s across the northern half of the area to the mid to upper 50s across the southern half of the area.
312 AM EDT Fri Apr 7 2023 Quiet and cool conditions will continue today as high pressure over the upper Midwest drifts eastward into the Great Lakes region. Saturday, we still have zonal flow overhead and high pressure, centered near the Great Lakes, expanding south through the Ohio Valley.
(Today) Temperatures currently near freezing in a few locations within the Freeze Warning, which will remain in effect until 9 AM. Most areas will be a bit warmer than yesterday, with more appreciable cloud cover across the south keeping temps a little cooler there.
A cold front has pushed across the Mid-South resulting in below climatological temperatures to start the weekend. A cool and dry Easter weekend is in store as high pressure settles off to our east.
The incoming ridge is now moving over the Great Basin and the axis looks to be over Colorado tomorrow afternoon. A weak upper level trof will move across Colorado on Saturday through Saturday evening but upper level support only showing very weak upward ascent. Across the plains, looks rather dry in the low levels with most of the moisture above 700mb, so mainly virga to some light rain showers Saturday evening.
Elsewhere in the state, Nrly to N/Erly winds wl continue to prevail w/ mostly cloudy skies and cooler temps in place. This wl keep temps more spring-like at most locations w/ temps rising into the low to mid-60s today and Sat.
336 AM EDT Fri Apr 7 2023 Marine -- Light snow possible north of Muskegon early Saturday -- High pressure will dominate the weather pattern through the weekend as it settles over the Michigan/Indiana/Ohio region. This high pressure will allow for mid level drying due to a positively tilted trough that will extend through most of the Mid Atlantic and the Southern Great Lakes. The sole exception is a weak area of low pressure emanating from an upper level trough at 500 mb. This trough has just enough moisture and instability to bring clouds through northern Lower Michigan Friday night into Saturday.
404 AM EDT Fri Apr 7 2023 (Today through Saturday) South Florida will remain under the influence of an Atlantic high pressure system on Friday, which should allow for continued breezy easterly flow and generally dry and warm conditions. Temperatures will continue to rise to the lower 90s in interior/southwest Florida, while remaining in the low 80s across the East Coast. Conditions will begin to deteriorate on Saturday as the aforementioned high erodes under the influence of an approaching upper-level trough/cold front combo.
1158 PM CDT Thu Apr 6 2023 The cold front has pushed well SE of the Mid-South. A cool and dry Easter weekend is in store as high pressure settles off to our east.
339 AM EDT Fri Apr 7 2023 Cooler weather is expected today and Saturday after yesterday's cold frontal passage.
A ridge of high pressure was situated across the area today. This will allow minimum temperatures to remain a bit more mild compared to the past couple of nights with only a few sites dipping into or around the freezing mark with no headlines planned at this time. Breezy southerly winds will return to the area through Saturday as an upper level ridge axis moves eastward into the central CONUS. Maximum temperatures by Sat are expected to reach the low 70s for most areas.
Our region will be on the western periphery of the highest PoPs and thus rain chances will decrease the further north and west you are located. Sfc winds are expected to veer out of the S-SE allowing highs to rebound into the low to mid 70s in most locations.
137 AM MDT Fri Apr 7 2023 With upper ridging over the western CONUS, skies across the northern plains are mostly clear. At the surface, a trough stretches across MT, and a surface boundary sits across our CWA. Another mild and dry day is expected, as the upper ridge slides over the northern plains today.
ACCUMULATING SNOW IN NORTH-CENTRAL WISCONSIN TONIGHT: Water vapor satellite this morning shows a short wave trough/upper level low just to the west of Lake Winnipeg moving southeast toward the Upper Midwest. Forecast soundings suggest parts of central Wisconsin will see decent mixing again today that will keep surface dew points stuck in the lower to middle 20s with only weak recovery after dark. Anomalously strong upper-level ridging becomes the dominant synoptic pattern through this timeframe, as evident from NAFES geopotential height standardized anomalies staying two to three standard deviations above normal through the upcoming week.
1220 AM CDT Fri Apr 7 2023 Continued convection this evening along the southern portion of a cold front draped through the region has generated an MCV type feature in the vicinity of Lake Charles, LA. High pressure enhanced by rain-cooled air has been easing southward through this afternoon and evening, and should push the front to the Gulf Coast by early morning. In the upper-levels, the right entrance region of a jet streak lies over the frontal boundary - enhancing lift and moisture convergence through the lower and mid levels. /NF/ A surface cold front is helping to fuel showers and a few storms across the area this afternoon. Thunderstorm activity should decrease as the cold front pushes south of the area by the evening, though a few rumbles of thunder may still be heard.
Mid-level flow is becoming more zonal this afternoon with a deep trough over Ontario, Canada and a ridge over the Rockies. Nonetheless, the low relative humidity values and winds of 15-20mph will lead to very high fire danger for areas along and west of Baileyville to Emporia line.
An upper level trough currently over southern AZ continues to approach the region as well. Farther south, mostly cloudy skies all day, and the chance for scattered showers and a few thunderstorms will keep temperatures cooler.
All in all, temperatures should average around 5 to 8 degrees warmer than yesterday. The one weather maker, and it is a minor one, that would impact the area will be a Pacific trough that will move in from the west and bring some snow showers to the western mountains, The system will be weakening as it approaches and will likely split.
Less cloud cover with relatively light surface winds overnight will see lows in the low to mid 30s in most spots by sunrise Saturday, below normal for this time of year but around 5 degrees more mild than what we'll see for lows early this morning.
However as the day progresses the higher rain chances will be more limited to the the Northern Ranchlands. Late into Friday night, the coastal trough starts to leave the area taking the rain with it. Rain chances tonight will decrease greatly as the trough is moving away starting from the west and working eastward. The low temperatures for tonight are expected to be in the 50s for all of Deep South Texas. More clouds will lead to cooler temperatures.
(Today through Saturday) High pressure at the surface and west-southwesterly flow aloft persist today through Saturday.
There will still be some sun at times, and temps will warm into the lower to middle 50s over south central WI and only around 40F near the lake.
Tonight into Saturday national model blends wants to paint too much cloud cover I think, especially of the low level variety.
A nearly zonal flow was present at 07Z across Kansas while a trough on the mid levels was moving into the Pacific Northwest. For today expect temperatures about 5 to 6 degrees warmer than yesterday (mid 60s) as we mix from near 750mb in central Kansas to around 800 mb in northeast and east central Kansas. The winds are expected to be strongest in north central Kansas with sustained winds of 15 to 20 mph with some gusts to 25 mph as the pressure gradient tightens as low pressure deepens in the lee of the Rockies.
Put patchy freezing fog in forecast through mid-morning to account for this cloud deck, and this will likely burn off by late-morning.
Saturday looks to be similar, except 3-5F warmer than today. Temps may climb into the low/mid 50s near the lake before settling back into the 40s in the afternoon as lake breeze develops.
The exception to this will be toward the Thumb which sits further within the thermal trough, bringing 850mb temps below -10C and resultant daytime highs struggling to reach 40 degrees. As high pressure builds and organizes low level flow out of the south, frontogenesis along the gradient intensifies. Otherwise, temperatures warm up to near-normal with highs in the low to mid 50s. Looking at the upper level pattern, temperature trends start to shift with the passage of the parent upper trough latter half of Saturday.
656 AM CDT Fri Apr 7 2023 (Today) As of early this morning, a cold front sits south of the forecast area, and have seen a noticeable drop off in temps and dewpoints during the overnight hours. The sfc front will remain to our south, but the higher moisture axis will be located along and just north of the front, keeping PoPs around 70-90% today. Temperatures will be noticeably cooler today, only topping out in the upper 50s/lower 60s this afternoon with widespread rain and dense cloud cover.
558 AM CDT Fri Apr 7 2023 (Today) Temperatures currently near freezing in a few locations within the Freeze Warning, which will remain in effect until 9 AM. Most areas will be a bit warmer than yesterday, with more appreciable cloud cover across the south keeping temps a little cooler there.
211 AM PDT Fri Apr 7 2023 An approaching low pressure system will provide gusty southwest winds, Sierra snowfall, and light valley rain showers through this afternoon.