Aikyam-Lab/Synoptic-Bench huggingface dataset:
150 AM MDT Sat Oct 14 2023 Despite passing high level clouds across the region tonight, temperatures are running 5-10 degrees cooler now than they were 24 hours ago. High pressure remains in control across eastern Utah and western Colorado today. Some moisture from the Pacific will work through the flow around the ridge, which means the potential for some passing clouds through the day today. Despite clear skies expected once again tonight, the warm air advection associated with the ridge will help overnight lows moderate a bit. This will limit the threat of widespread freezing temperatures.
1220 AM CDT Sat Oct 14 2023 (This afternoon through Saturday night) Last night's cold front has pushed all the way through Rio Grande this afternoon, brining in a cooler and drier airmass to the region. Most in the Permian Basin and southeast New Mexico top out in the 70s today with 80s down south and in the lower elevations. Comfortable, seasonable weather is on tap for Saturday with a cooler start compared to this morning, high temperatures top out in the low to mid 70s for most.
Low pressure at the surface and aloft was moving through northern IL early this morning. The low pressure system is expected to shift rapidly east into the Ohio Valley today, with any lingering steady rains ending across the southeast part of the forecast area this morning. Highs on Sunday should reach the lower to middle 50s.
17 (Tonight through Sunday night) A cold front is draped from Central Texas into the Missouri and Upper Mississippi River Valleys. A warm and somewhat humid airmass is ahead of the boundary with a cooler and drier airmass behind. A ridge of high pressure will build south from Canada tonight into Saturday with a cooler and drier airmass moving in. As the ridge builds over the area Saturday gusty northwest winds can be expected, much of the same will occur on Sunday.
The latter half of the week will trend towards high pressure and above normal temperatures. An upper low will slide to our south today without bringing precipitation to the area. Some guidance continues to produce spotty showers associated within a subtle trough hiding between the two upper lows. So temperatures from the low 30s in cold hollows to mid 40s in the warmest valleys is expected. As we head into Sunday, an upper low will manage to pinch off as some vorticity gets left behind while anomalous ridging builds across Canada. A more defined trough axis will be present, along with better moisture compared to today.
Abundant cloud cover remains across the CWA early this morning from trapped low level moisture and a secondary upper level low currently in South Dakota. Cooler airmass will remain across the area today, bringing high temperatures in the upper 40s to lower 50s. Tonight, the upper low will continue to pull out of the Northern Plains and bring a gradual clearing from west to east. Light winds again look to prevail while temperatures cool to near or slightly below freezing for some areas. These cooler temperatures combined with light winds could bring some patchy fog tonight into Sunday morning.
Low pressure center sitting back over western IL/eastern IA with a occluded boundary draping eastward across northern IN with an associated weak cold front running southward into central and southern IN. The higher amounts will be expected in locations near Lake Michigan. Highs today will run cooler than yesterday with highs in the lower to middle 50s for most locations. Perhaps a few degrees warmer in the far southeast portions of the CWA. Precipitation will be on the downtrend later tonight as the trough continues to move east of the area. Lows tonight in the low to mid 40s.
Cold front is just moving into northwest Louisiana. (This evening through Saturday night) Weak upper level ridge has already passed east of the CWA. A quick moving upper level trough behind this ridge will steadily move east across the mid/upper MS River Valley tonight. A cold front associated with this trough will pass through the local area on Saturday. Due to no pre-frontal return flow to increase local moisture levels, will be a completely dry cold front. More noticeable cooler air filters into the region Saturday night into Sunday which will push both highs and lows a solid 10 degrees below normal.
(Today through Sunday Night) As of the time of writing, this morning's cold front has entered the coastal counties, with a thin line of light showers pushing SE with the front.
338 AM CDT Sat Oct 14 2023 KEY MESSAGES: - Strong fall upper low continues to spin and slide east into the Midwest.
More sunshine is expected for Saturday and Sunday, along with warmer temperatures.
205 AM EDT Sat Oct 14 2023 A cold front will approach tonight and move through the region on Saturday. Breezy and cooler conditions will follow for the rest of the weekend. So widespread activity will come to an end quicker, there will be additional showers that occur ahead of an approaching cold front that is still back in western Indiana. Cooler air will start to work into the region with lows Saturday night dropping down into the 40s. In addition the highest wind gusts are also expected Saturday night where wind gusts of 30 to 35 mph will be possible. Periods of unsettled weather are likely, first from a departing upper trough, followed by a frontal system.
Key Messages: * Below normal highs today * Some clouds today * Possible freeze Sunday morning Below normal highs are expected today as cool high pressure prevails across the FA. We will have to see how opaque these clouds end up being to see if the high clouds will be problematic or not to view the partial eclipse. High pressure should build southward Sunday morning with winds going light. As a result, lows around freezing will be possible west of Highway 283.
Ridging continues to dominate the weather, causing above average temperatures and mild conditions. A weak trough moving through the ridge late tonight will cause some showers in northwest Montana, but they are expected to be light and of no impact.
1216 AM CDT Sat Oct 14 2023 (This evening through Saturday) A cold front moved through the area this morning and is now south of Interstate 10. Saturday will be a very nice day with clear skies, light winds and afternoon highs ranging from the lower 70s across the Big Country, to the mid and upper 70s elsewhere.
1207 AM CDT Sat Oct 14 2023 (Tonight) As a cold front moves through the lower Mississippi Valley, there are low chances (30% or less) of shower formation ahead of it throughout northwest AL overnight.
This same environment will move overhead tonight, save for the warm front which may get hung-up near Muncie. This is as the cold front will have pushed east by then. Rain moves in by the afternoon as the low occludes and brings rain to the whole forecast area.
This will likely continue through the morning though will likely start drying out from the west by the late morning to early afternoon as the system slides east with the upper low opening up and moving out a bit quicker.
Ridging anchored over the Florida Keys has kept the island chain dry overnight and early this morning. High resolution guidance notes a line of showers and thunderstorms associated with a pre-frontal trough that will intensify to the west of the island chain before spreading over the area. Following the cold front, a modified arctic air mass will end the warm daytime temperatures in the upper 80s and lower 90s, as well as the relatively warm overnight lows we have experienced the past few days.
We do have a few light showers continuing to pivot around the western extreme of the upper low in northeast South Dakota/western MN, along with some high based light rain across western South Dakota. Despite high pressure extending down into the region, stratus extends well into Canada. a western CONUS ridge and eastern CONUS trof.
1207 AM CDT Sat Oct 14 2023 Quick update to nudge temperatures a few degrees cooler tonight into early Saturday. New guidance supports temperatures in the low to mid 30s over northern and western areas on the Caprock, with low 40s elsewhere. (This evening through Saturday) Water vapor imagery currently shows the upper level low over the central Midwest with the associated cold front moving through central TX. Tonight the cooler air mass in place will allow temperatures to drop into the 30s and 40s overnight. With winds expected to remain relatively light, portions of the far northwestern TX Panhandle may see temperatures at or around the freezing mark.
(Today through Sunday afternoon) The short term forecast can be summed up in two words, high pressure.
947 PM MDT Fri Oct 13 2023 - Widespread freeze expected tonight across the lower elevations.
HRRR/HREF cloud simulations both indicate some of this high cloud cover will be across southeast Nevada/southwest Utah and northwest Arizona at the beginning of the annular eclipse shortly after 8 am. Otherwise, very quiet weather-wise this weekend as a ridge of high pressure builds over the region. This will translate to warmer temperatures and light winds today.
1214 AM EDT Sat Oct 14 2023 Low pressure will intensify across the Maritimes overnight into Saturday then move to the east Sunday while another low tracks south of the region.
/Issued 1248 AM CDT Sat Oct 14 2023/ /Through Sunday/ A crisp fall weekend is in store following yesterday's cold frontal passage, with clear skies forecast for today's eclipse.
Highs will range from the lower 70s north of I-20 to the upper 70s along the I-10 corridor. Dry weather, clear skies, and light winds tonight will allow for another cool night with lows from the lower 40s north to around 50 along and south of the I-10 corridor.
Upper ridge will begin to build over Montana today which will bring warmer temperatures over the area.
Much cooler temperatures will filter into the region on gusty northwest winds today.
1247 AM CDT Sat Oct 14 2023 A cold front was located from near Magnolia AR, to Minden LA, to Zwolle LA, and to Zavalla TX. A cold front extends from along a MLU to POE line as of 0530Z, and will continue to advance ESE out of ECntrl LA through 09Z.
(Today through Sunday) Latest observations have the cold front positioned just to the west of the Tennessee River right now. Temperatures will remain quite a bit cooler Sunday.
654 AM CDT Sat Oct 14 2023 (Today through Sunday) Latest observations have the cold front positioned just to the west of the Tennessee River right now. Temperatures will remain quite a bit cooler Sunday.
517 AM MDT Sat Oct 14 2023 Upper level ridging continues to build in across the CWA with increasing convergence aloft through the upper Rockies.
635 AM CDT Sat Oct 14 2023 (Today) A low pressure centered over Illinois early this morning will continue to slide east southeast today with the backside of the low sagging into Northeast Oklahoma and Northwest Arkansas. low level cloud cover on the backside of the low is expected to spread into the CWA today with the greater potential across Northwest Arkansas. Also with the cooler conditions today.
Late week storm system shifts east of the area opening the door for ridging through early in the coming work week. Temperatures will be on the uptick this weekend with some sun and winds advecting in warmer Great Basin air into the region.
(Rest of Today) A cold front will continue pushing east through the area this morning, and behind it will be much cooler and drier air.
1030 AM EDT Sat Oct 14 2023 Low pressure will remain across the Maritimes today then move to the east Sunday while another low tracks south of the region.
Weak cold front is bringing light rain showers across the North Bay with small accumulations of a few hundredths of an inch expected.
645 AM EDT Sat Oct 14 2023 A weak area of low pressure will move NE along the coast this morning, providing some patchy light rain. Expect cooler air behind the front for Sunday. Cooler and drier air will filter into the region late Sunday night into mid week.
(Today through Sunday night) As the main upper low transitions east, northwesterly flow will begin for the short term period. Surface temperature will drop to the 30's across most of the High Plains, and sub-freezing temperatures are likely for areas in the northwest Panhandles. Sunday morning, there is the potential for low temperatures to meet the freezing level once again, but there are enough disparities between short term guidance that may lean against another freeze.
605 AM EDT Sat Oct 14 2023 Low pressure will intensify across the Maritimes today then move to the east Sunday while another low tracks south of the region.
-Stalley Previous Discussion: /Through Sunday/ A crisp fall weekend is in store following yesterday's cold frontal passage, with clear skies forecast for today's eclipse.
A cold front will move through the area later today/tonight, with the drier air really settling in on Sunday.
636 AM CDT Sat Oct 14 2023 (Today through Sunday night) As the main upper low transitions east, northwesterly flow will begin for the short term period. Surface temperature will drop to the 30's across most of the High Plains, and sub-freezing temperatures are likely for areas in the northwest Panhandles. Sunday morning, there is the potential for low temperatures to meet the freezing level once again, but there are enough disparities between short term guidance that may lean against another freeze.
An upper low over northwest Illinois early this morning will move eastward and open up today as it gets assimilated into a larger- scale trough centered over the Canadian maritime provinces. A second very tiny upper low will descend southeast through Nebraska today, Missouri tonight, and into Tennessee Sunday.
621 AM CDT Sat Oct 14 2023 (Today through Sunday afternoon) The short term forecast can be summed up in two words, high pressure.
548 AM CDT Sat Oct 14 2023 (Today through Sunday) A cold front has moved south of South-Central Texas early this morning with drier and cooler air streaming into the area. Highs this afternoon will be around 8-12 degrees cooler than yesterday, ranging from the mid 70s to mid 80s. For Sunday, expect mainly clear skies and even cooler temperatures from the low 70s to low 80s depending on location.
626 AM CDT Sat Oct 14 2023 KEY MESSAGES: - Strong fall upper low continues to spin and slide east into the Midwest.
638 AM CDT Sat Oct 14 2023 (Today) As a cold front moves through the lower MS Valley, low chances (~20%) of showers are possible ahead of it. As the cold front passes, gusty winds up to 15-20 mph will accompany it and clearing skies are forecast to follow behind it.
621 AM CDT Sat Oct 14 2023 Much cooler temperatures will filter into the region on gusty northwest winds today.
623 AM CDT Sat Oct 14 2023 (Today through Sunday Night) As of the time of writing, this morning's cold front has entered the coastal counties, with a thin line of light showers pushing SE with the front.
627 AM CDT Sat Oct 14 2023 A mid/upper trough continues to translate slowly eastward across the Middle and Upper Mississippi Valley area early this morning. The highest speeds may be weighted early in the period where we could see some 30+ kt gusts.
647 AM CDT Sat Oct 14 2023 (Today through Sunday) Currently we have lots of clouds and drizzle out there this morning ahead of an approaching cold front. Tonight we will see cold air stratus clouds build in from the north and keep temperatures in the low 50s, but we should remain dry. On Sunday, the cold air will be abundant and with decreasing clouds temperatures will only reach the low to mid 60s, with some upper 60s in the southeast.
A weakening cold front is currently sliding southward across the Florida Peninsula. Therefore, will hold PoPs at low-end chance (30 percent) for the Lower and Middle Keys, while keeping higher PoPs across the Upper Keys. From synopsis: an early season cold front will approach the Keys on Sunday accompanied by fresh southwest to west breezes.
517 AM MDT Sat Oct 14 2023 Despite passing high level clouds across the region tonight, temperatures are running 5-10 degrees cooler now than they were 24 hours ago. High pressure remains in control across eastern Utah and western Colorado today. Some moisture from the Pacific will work through the flow around the ridge, which means the potential for some passing clouds through the day today. Despite clear skies expected once again tonight, the warm air advection associated with the ridge will help overnight lows moderate a bit. This will limit the threat of widespread freezing temperatures.
1228 PM CDT Sat Oct 14 2023 (Today through Sunday Night) As of the time of writing, this morning's cold front has entered the coastal counties, with a thin line of light showers pushing SE with the front.
1238 PM CDT Sat Oct 14 2023 (Rest of Today) A cold front will continue pushing east through the area this morning, and behind it will be much cooler and drier air.
Pacific cold front has pushed through the forecast area with only scattered stratocu over the eastern counties this afternoon which will clear by sunset.
856 AM PDT Sat Oct 14 2023 High pressure will control the weather over the West Coast for the coming week with generally fair skies, warm days, and cool nights.
The northerly flow will bring drier air and cooler temperatures, facilitating clearer skies and low temperatures in the low to mid 60s tonight and mid to upper 50s Sunday night. Highs Sunday are forecast to be in the low to mid 80s under mostly clear skies.
This gradient will relax tonight as the trough moves into eastern Montana.
The 19Z MSAS surface analysis indicated low pressure over southwest PA and high pressure that stretched from the Canadian Prairie into the northern Plains. Temps will be near or slightly below normal early in the week, turn slightly above normal mid- week, then turn a little cooler at the end of the week. northerly flow will continue across the western Great Lakes as the upper trough swings across the eastern Great Lakes and Ohio Valley. The north winds and marginal delta Ts in the low teens are expected over Lake Superior could keep a few lake effect showers going over far north central WI, but any activity will be light.
The highest summits will continue to experience wintry conditions this weekend with wind chills well below freezing and occasional snow or sleet. A broad trough lingers across New England through the middle of the week, with low pressure system generally remaining off to our south and east.
1233 PM EDT Sat Oct 14 2023 Low pressure will remain across the Maritimes today then move to the east Sunday while another low tracks south of the region.
216 PM EDT Sat Oct 14 2023 Expect cooler, drier air behind the front with clearing skies overnight. Cooler and drier air will filter into the region late Sunday night into mid week.
(This evening through Sunday) Cool surface ridging draped over the region this afternoon will remain largely unchanged tonight under northwest flow. NBM's lows tonight remain a bit too mild for what should be another strong radiational cooling event, so opted for a blend of the cooler bias- corrected guidance. However, this coverage of freezing temps currently looks too sparse for a freeze warning.
Much cooler air will continue to advect south through the short-term period allowing for some of the coolest temperatures we have seen this season. On Sunday night, overnight lows will average in the lower to middle 40s. Cloud deck will be the result of a weak trough axis embedded within northwest aloft.
Colder than normal air is still moving across the panhandles which will yield lows near to or at freezing for tonight into Sunday for portions of the panhandles. That being said a warming trend will start on Sunday as a ridge builds across the region so hopefully tonight will be the last night for a little bit of time that will see these near or freezing temperatures.
A weak short wave trough will continue to bring isolated sprinkles this morning.
106 PM CDT Sat Oct 14 2023 An upper-level low near is located near Chicago this morning while latest surface analysis places an occluding cold front from Central Indiana back through Middle Tennessee and Southern Mississippi. CJC Much cooler temperatures will filter into the region on gusty northwest winds today.
Despite the cold front moving through during the day, the drier and cooler airmass won't settle into the area until later tonight. Winds will remain a bit elevated tonight which will usher in cooler and drier air into the region. Overnight lows will fall into the lower to mid 50s.
Breezy northwest winds are expected on Sunday with highs ranging from the upper 60s/low 70s across Southeast AL and Southwest GA to the low/mid 70s across Florida.
The short-term period will be dry and quiet and cooler temperatures. Another quiet night is expected tomorrow night with lows ranging from the middle 40s in the Hill Country to the lower 50s elsewhere.
433 PM EDT Sat Oct 14 2023 Low pressure will move east across the Maritimes tonight through Sunday while another low tracks south of the region.
Strong high pressure will continue to build southeast into the region through Sunday. A cooler drier airmass will also continue to advect into the region during this time.
212 PM EDT Sat Oct 14 2023 Low pressure moving east across Ohio should quickly move to the Mid Atlantic coast this evening before pulling out to sea in the Atlantic.
Drying out thereafter with temperatures gradually warming into the low sixties by midweek. The low will continue to move east and slightly south in response to a trough descending from Ontario. This orientation becomes north-south through the day as the parent trough axis drops south. Rain showers increase in coverage Sunday night as the trough axis swings through.
334 PM CDT Sat Oct 14 2023 Tonight will bring cold temperatures potentially reaching the freezing mark or colder over a significant portion of the area west of the highway 23 corridor (Dighton to Meade).
Cloudy skies will continue to develop through the day with a fairly moist layer above 15000 feet and warmer air moving in from the south west. Also, Winds gusting at 20-35 kt are likely in the Shasta Valley, as well as along ridgetops resulting in occasional turbulence.
1128 AM MDT Sat Oct 14 2023 Temperatures will rise, or have risen, above freezing very shortly so the Freeze Warning has been allowed to expire. Despite passing high level clouds across the region tonight, temperatures are running 5-10 degrees cooler now than they were 24 hours ago. High pressure remains in control across eastern Utah and western Colorado today. Some moisture from the Pacific will work through the flow around the ridge, which means the potential for some passing clouds through the day today. Despite clear skies expected once again tonight, the warm air advection associated with the ridge will help overnight lows moderate a bit. This will limit the threat of widespread freezing temperatures.
242 PM CDT Sat Oct 14 2023 The Northern Plains sit under an upper level deformation pattern early this afternoon, with longwave troughing to the east and west and longwave ridging to the north and southwest. At the surface, a meridional ridge axis extends from the Canadian prairie provinces to the Central High Plains. The placement of the cloud cover through the night will likely be the discriminating factor between low temperatures remaining above or falling below freezing.
Tonight and Sunday Afternoon satellite imagery shows morning cloud cover gradually pushing east of the region as high pressure starts to build over the area. Rural and sheltered spots in the lower Snake will likely come close as well but most of the zone will likely stay above 36 so have kept them out for now. In short, it remains pleasant this weekend with temps on the warmer side of normal for mid- October.
1139 AM CDT Sat Oct 14 2023 (Today through Sunday afternoon) The short term forecast can be summed up in two words, high pressure.
1231 PM CDT Sat Oct 14 2023 KEY MESSAGES: - Strong fall upper low continues to spin and slide east into the Midwest.