Aikyam-Lab/Synoptic-Bench huggingface dataset:
1227 AM CDT Sat Mar 16 2024 Radar this evening shows a line of showers has developed along and near a cold front currently stretching from Pulaski to Crossville. Rest of forecast remains on track, with a colder airmass continuing to filter in behind the cold front across the midstate. Temperatures are now down into the low 50s in our northwest, and lows are expected to drop into the 40s areawide overnight.
409 AM EDT Sat Mar 16 2024 Weak high pressure to the south moves off the mid Atlantic coast today. A cold front approaches from the northwest tonight as the associated low tracks through southeastern Canada. The cold front moves across the region Sunday.
The low clouds are expected to largely dissipate due to a combination of factors during the morning hours with partly/mostly sunny sky conditions later today.
(Today through Sunday afternoon) An upper level low remains over southern California this morning and will be stationary throughout the short term. Storms are not expected to be as strong as what was seen yesterday morning with low freezing level heights making small hail a possibility.
316 AM EDT Sat Mar 16 2024 Weak high pressure builds across the region today and moves offshore tonight.
A weak area of low pressure brings a chance for showers Sunday and especially Sunday night.
1259 AM CDT Sat Mar 16 2024 (This evening through Saturday night) Cooler temperatures and rain showers highlight the short term forecast. Cooler temperatures will remain across the Panhandles this afternoon along with scattered rain showers. A H500 low pressure system will remain fairly stationary near the southern tip of Nevada tonight through Saturday night.
427 AM EDT Sat Mar 16 2024 A ridge of high pressure builds in bringing dry conditions today with clearing skies. Another cold front moves through tonight with rain and a few snow showers.
Zonal flow aloft is positioned across much of the Southeast and Gulf Coast, and high pressure is near the Lower Mississippi River Valley.
348 AM CDT Sat Mar 16 2024 - A cold front will bring very strong winds to the Northland today, with breezy conditions persisting into Sunday.
353 AM EDT Sat Mar 16 2024 A ridge of high pressure builds in bringing dry conditions today with clearing skies. Another cold front moves through tonight with rain and a few snow showers.
- There is also a chance of showers as a cold front moves through the region; around noon toward the Tri Cities, mid to late afternoon toward metro Detroit.
1259 AM CDT Sat Mar 16 2024 (This evening through Sunday) 19z surface analysis reveals a cold front extending from near Stuttgart, to near Texarkana. Scattered rain is expected across southern sections of the state Saturday night and Sunday morning, supported by another cold front approaching from the north.
This vort max will swing a 'cold front' across the area later this morning. After this, cooler air moves into the area tonight with lows into the 20s area wide.
1222 AM CDT Sat Mar 16 2024 (Tonight through Saturday night) Showers and thunderstorms have developed near a cold front that is stretched across South Central Texas. An upper level low over the southwestern US will remain in place through the short term period.
345 AM EDT Sat Mar 16 2024 Temperatures will be relatively cooler today behind a cold front but will continue above normal through the weekend.
118 AM EDT Sat Mar 16 2024 Radar shows a few showers still around as the cold front is crossing the area, but convective energy looks quite limited so will remove the remaining thunder from the forecast with this update. Once the front passes through all precipitation chances will be taken away with it leading to a cooler temperatures overnight with lows expected to be around 10 degrees colder than this morning.
229 AM MDT Sat Mar 16 2024 Montana will be in northerly flow aloft today and Sunday with an upper ridge to the west and an upper trough to the east. The high will remain over the forecast area tonight and Sunday. A lee-side trough will develop over Alberta Sunday as the upper ridge flattens a bit.
307 AM EDT Sat Mar 16 2024 High pressure takes control today. Weak cold front brings showers mainly across the northern portions of the area tonight.
Surface analysis depicts high pressure over the western Atlantic and extending westward across South Florida, with a stalled front from the Mid Atlantic across the Southeastern states to the Texas coast. Aloft, low-level ridging is centered almost overhead, with a mid-level ridge centered over the western Caribbean and extending northward into South Florida. As noted previously, a rather dry airmass prevails across our region and southward through the western Caribbean under the ridge, with deep tropical moisture far to the south over Central America. Mostly clear, warm and dry weather will continue across the Keys through the weekend, as the lower-mid level ridge retreats slowly eastward into the western Atlantic. Dewpoints in the lower to mid 70s along with diminishing SE breezes will make for rather sticky outdoor conditions.
659 AM EDT Sat Mar 16 2024 High pressure takes control today. Weak cold front brings showers mainly across the northern portions of the area tonight.
627 AM CDT Sat Mar 16 2024 (Today through Sunday afternoon) An upper level low remains over southern California this morning and will be stationary throughout the short term. Storms are not expected to be as strong as what was seen yesterday morning with low freezing level heights making small hail a possibility.
Showers will develop southwest and west of the forecast area and spread east with the highest precipitation chances across north Texas and southern Oklahoma.
1010 AM EDT Sat Mar 16 2024 High pressure takes control today. Weak cold front brings showers mainly across the northern portions of the area tonight.
655 AM CDT Sat Mar 16 2024 (Today through Sunday night) The H500 low pressure system continues it's slow progression eastward through the short term period. However, there are concerns that this low will be displaced further west than what models have been depicting as we approach Sunday. Current observations of our synoptic pattern this morning, reinforce concerns of the closed low being forced westward earlier than what models have displayed. This is contingent on a stronger high pressure system in the northwest CONUS, or a more southerly track of the main jet stream trough.
(Today and tonight) A large upper low will remain over the Desert Southwest the next 24 hours, with southwest flow aloft continuing across Texas. Low level warm advection atop the cooler boundary layer will result in widespread low clouds through tonight, along with some patchy fog. This will keep temperatures below normal today, with highs ranging from the mid and upper 50s north, to the lower and middle 60s south.
952 AM EDT Sat Mar 16 2024 Breezy to windy conditions are expected for today as high pressure moves off to the southeast while a cold front approaches from the northwest. The cold front will move southeast through the region tonight, bringing a chance of showers. Cooler conditions are expected in the wake of the front on Sunday.
It will be warmer today with highs in the mid 40s to upper 50s, and Sunday will be a few degrees warmer than today. Locally breezy north- northeast winds can be expected this weekend, mainly along ridgetops. This is all associated with a large upper low to the south with the low currently centered west of Flagstaff, AZ. Mid-level clouds are rotating around the low over the southern half of NV. Meanwhile, a large upper level ridge is over the northwest interior of the US, resulting in dry and stable conditions over northern NV. High pressure will strengthen and force the upper low to the south. Ridgetop winds will remain breezy with light winds in the valleys.
Another warm day is on tap, but lingering cloud cover and additional moisture will keep highs in the lower to middle 80s, with a couple of upper 80s for interior locations.
Low-level subtropical ridging stretches west across southern Florida. High pressure over the western Atlantic will maintain gentle to occasionally moderate southeasterly breezes across the Keys coastal waters through the weekend.
(Today through Sunday night) The H500 low pressure system continues it's slow progression eastward through the short term period. However, there are concerns that this low will be displaced further west than what models have been depicting as we approach Sunday. Current observations of our synoptic pattern this morning, reinforce concerns of the closed low being forced westward earlier than what models have displayed. This is contingent on a stronger high pressure system in the northwest CONUS, or a more southerly track of the main jet stream trough.
709 AM EDT Sat Mar 16 2024 Weak high pressure builds across the region today and moves offshore tonight.
702 AM EDT Sat Mar 16 2024 A ridge of high pressure builds in today bringing dry conditions and clearing skies. Another cold front moves through tonight with rain and a few snow showers.
944 AM EDT Sat Mar 16 2024 A ridge of high pressure builds in today bringing dry conditions and clearing skies. Another cold front moves through tonight with rain and a few snow showers.
Normal highs are rising through the low to mid 50s.
602 AM MDT Sat Mar 16 2024 - Near to slightly below average temperatures expected for the weekend, with a slight chance of snow showers over the high terrain Saturday night. Looking at an uneventful weekend weather-wise as the CWA is sandwiched between an upper-level low spinning over the Desert Southwest and a strong trough over the Great Lakes Region.
Otherwise, afternoon temperatures will range from the low-to-mid 70s across the interior with mid-to-upper 60s at the coast.
441 AM CDT Sat Mar 16 2024 - Cooler with gusty northwest winds today.
We'll likely see lower POPs as well as clearing skies by late Sun night as the cold front finally pushes well off the coast.
647 AM CDT Sat Mar 16 2024 (Today and tonight) A large upper low will remain over the Desert Southwest the next 24 hours, with southwest flow aloft continuing across Texas. Low level warm advection atop the cooler boundary layer will result in widespread low clouds through tonight, along with some patchy fog. This will keep temperatures below normal today, with highs ranging from the mid and upper 50s north, to the lower and middle 60s south.
Muscha (Today through Sunday night) The H500 low pressure system continues it's slow progression eastward through the short term period. However, there are concerns that this low will be displaced further west than what models have been depicting as we approach Sunday. Current observations of our synoptic pattern this morning, reinforce concerns of the closed low being forced westward earlier than what models have displayed. This is contingent on a stronger high pressure system in the northwest CONUS, or a more southerly track of the main jet stream trough.
701 AM EDT Sat Mar 16 2024 Temperatures will be relatively cooler today behind a cold front but will continue above normal through the weekend.
655 AM EDT Sat Mar 16 2024 Breezy to windy conditions are expected for today as high pressure moves off to the southeast while a cold front approaches from the northwest. The cold front will move southeast through the region tonight, bringing a chance of showers. Cooler conditions are expected in the wake of the front on Sunday.
411 AM MDT Sat Mar 16 2024 - Near to slightly below average temperatures expected for the weekend, with a slight chance of snow showers over the high terrain Saturday night. Looking at an uneventful weekend weather-wise as the CWA is sandwiched between an upper-level low spinning over the Desert Southwest and a strong trough over the Great Lakes Region.
721 AM EDT Sat Mar 16 2024 (Today through Sunday) To start the weekend, the area will be under the influence of a dominant high-pressure ridge. At the surface level, this extensive high-pressure zone will persistently move eastward toward the Atlantic Ocean. Mid-level ridging will subtlety weaken on Sunday, but overall dry and warm conditions will continue.
628 AM CDT Sat Mar 16 2024 (Today through Sunday) Yesterday's cold front is now well past Middle Tennessee and high pressure is building in from the west. Temperatures will be cooler, and will be even colder after a (hopefully) dry cold front comes through early Sunday.
A stratus deck is lingering over much of the area this morning, whereas the high cirrus clouds have moved eastward out of Tennessee. (Today and tonight) A cold front has cleared the area, leaving a N-NW flow pattern. A high pressure ridge will be over the area tonight, with another cold front approaching from the north.
1015 AM EDT Sat Mar 16 2024 Temperatures will be relatively cooler today behind a cold front but will continue above normal through the weekend.
636 AM CDT Sat Mar 16 2024 Today and Tonight: Early morning surface analysis had a weak cold front just south of our CWA and a 1019mb centered over the Central Plains. In the wake of the cold front satellite imagery and surface observations showed plenty of stratus around 200ft with patchy fog. Despite the having the weak cold front through our CWA, temperatures will continue to top out warmer than normal today and will continue above normal tonight. /22/ Sunday morning, rain chances are expected to continue as a broad lower-level trough stretches into the Lower Mississippi Valley, bringing a cold frontal boundary into the region.
638 AM CDT Sat Mar 16 2024 - Cooler with gusty northwest winds today.
705 AM EDT Sat Mar 16 2024 (Today and tonight) A cold front has cleared the area, leaving a N-NW flow pattern. A high pressure ridge will be over the area tonight, with another cold front approaching from the north.
619 AM EDT Sat Mar 16 2024 Weak high pressure to the south moves off the mid Atlantic coast today. A cold front approaches from the northwest tonight as the associated low tracks through southeastern Canada. The cold front moves across the region Sunday.
623 AM CDT Sat Mar 16 2024 -Seasonably warm today before a much cooler air mass moves into the area late this weekend. Prior to sunrise this morning, surface obs showed high pressure residing over KS. CAA will commence late today and continue through Sunday as a Canadian ridge travels south over the Northern High Plains. This pattern will cause temperatures to be about 15 degrees cooler tomorrow afternoon compared to today.
Isolated showers and thunderstorms are possible, mainly in Los Angeles again Saturday due to a slow moving upper low.
- Cooler temperatures and breezy conditions are expected heading into the weekend, with highs below seasonal normals Sunday. Low pressure at the surface to the northeast is dragging a cold front south early this morning. Just ahead of this front westerly flow increases a bit and there has been some briefly rising temperatures just before the cold front.
A dry cold front will move through our area late tonight bringing in a reinforcing drier airmass out of south central Canada. Look for highs to be slightly cooler on Sunday and closer to seasonal normal values ranging in the upper 50s to lower 60s.
1142 AM MDT Sat Mar 16 2024 - Near to slightly below average temperatures expected for the weekend, with a slight chance of snow showers over the high terrain Saturday night. Looking at an uneventful weekend weather-wise as the CWA is sandwiched between an upper-level low spinning over the Desert Southwest and a strong trough over the Great Lakes Region.
232 PM MDT Sat Mar 16 2024 The split flow pattern persists, as the cut-off low pressure system over the Las Vegas/Grand Canyon region dominates the southern stream, and the highly meridional or amplified pattern dominates the northern stream. Currently our local region sits between the deep low pressure over the Great Lakes region and the strong amplified ridge of high pressure over Washington State and British Columbia.
High pressure will continue to bring clear skies with milder temperatures. Overnight lows will generally remain below freezing both tonight and Sunday night with Sunday highs in the 50s lower elevations and 40s in the mountains.
Dry and pleasant for most tomorrow as moisture starved cold front crosses the region Sunday morning. Despite the cold front passing through overnight, the main cold air advection will hold on for one more day, with 850 mb temperatures not falling below 0C until after midnight Sunday night.
The Northern Rockies are currently basking under the strengthening influence of a high-pressure system, leading to abundant sunshine and temperatures soaring above the seasonal norms.
(This evening through Sunday) A low pressure system will continue sitting across the western U.
----BMickelson Previous discussion: Montana will be in northerly flow aloft today and Sunday with an upper ridge to the west and an upper trough to the east. The high will remain over the forecast area tonight and Sunday. A lee-side trough will develop over Alberta Sunday as the upper ridge flattens a bit.
/15/ Today and Tonight: Early morning surface analysis had a weak cold front just south of our CWA and a 1019mb centered over the Central Plains. In the wake of the cold front satellite imagery and surface observations showed plenty of stratus around 200ft with patchy fog. Despite the having the weak cold front through our CWA, temperatures will continue to top out warmer than normal today and will continue above normal tonight. /22/ Sunday morning, rain chances are expected to continue as a broad lower-level trough stretches into the Lower Mississippi Valley, bringing a cold frontal boundary into the region.
(Rest of today through Sunday) The area remains under the influence of a high-pressure ridge, limiting rain chances through the short term period. Mid- level ridging will begin to weaken on Sunday, but overall dry and warm conditions will continue.
Isolated to scattered showers will continue to spiral around a low pressure system over Arizona through tonight.
1003 AM CDT Sat Mar 16 2024 - Cooler with gusty northwest winds today.
241 PM EDT Sat Mar 16 2024 (This afternoon through Sunday) High pressure has built in behind yesterday's frontal boundary. A wave of low pressure will move east along the stalled front and bring chances for precipitation to much of north and central GA tomorrow into tomorrow night. High pressure and dry conditions will persist through tonight. Since the low remains across the FL panhandle/far S GA, the highest chances rain remain south of the Interstate 20 corridor. However, if the track of the low shifts a bit northward, so will the axis of heavier QPF/rain chances.
Another warm day is underway, but cloud cover and additional moisture are keeping highs in the lower to middle 80s, with a couple of upper 80s for interior locations.
1203 PM EDT Sat Mar 16 2024 High pressure takes control today. Weak cold front brings showers mainly across the northern portions of the area tonight.
207 PM EDT Sat Mar 16 2024 Weak cold front brings showers mainly across the northern portions of the area tonight.
1249 PM CDT Sat Mar 16 2024 (Today and tonight) A large upper low will remain over the Desert Southwest the next 24 hours, with southwest flow aloft continuing across Texas. Low level warm advection atop the cooler boundary layer will result in widespread low clouds through tonight, along with some patchy fog. This will keep temperatures below normal today, with highs ranging from the mid and upper 50s north, to the lower and middle 60s south.
- Cooler temperatures and breezy conditions are expected heading into the weekend, with highs below seasonal normals Sunday.
206 PM EDT Sat Mar 16 2024 Breezy to windy conditions are expected for today as high pressure moves off to the southeast while a cold front approaches from the northwest. The cold front will move southeast through the region tonight, bringing a chance of showers. Cooler conditions are expected in the wake of the front on Sunday.
Look for a beautiful spring Sunday with afternoon highs a few degrees warmer than today. Locally breezy north-northeast winds can be expected this weekend, mainly along ridgetops. The clouds are due to a closed upper low that has been persistently spinning over western Arizona and far southern California and Nevada. A ridge of high pressure is over the Pacific Northwest. These two systems continue a blocking pattern over the western United States which will promote quiet weather for the area. Central Nevada will see a bit more sun for the day with some clouds hanging around due to the proximity of the closed upper low.
Thankfully, this SW flow will begin to wane Sunday afternoon, allowing for the deeper trough and 850mb front to the north to drop south. In turn, rain chances will exit the region, and cooler temperatures will work into the region to start the new workweek.
934 AM MDT Sat Mar 16 2024 Clear skies and light winds prevail this morning as an upper level ridge is firmly in place over the Pacific Northwest. VFR under high pressure. VFR with dry and stable conditions as high pressure remains over the region.
1203 PM CDT Sat Mar 16 2024 (Today through Sunday afternoon) An upper level low remains over southern California this morning and will be stationary throughout the short term. Storms are not expected to be as strong as what was seen yesterday morning with low freezing level heights making small hail a possibility.
1257 PM EDT Sat Mar 16 2024 The center of weak high pressure builds just to our south this afternoon and then moves offshore tonight.
1255 PM CDT Sat Mar 16 2024 - Cooler with gusty northwest winds today.
Sunday will feature much of the same conditions, though a few degrees cooler for Johnson and Natrona counties behind a weak cold front that will clip the area.
Cold front appears to be draped across the forecast area from near Victoria to near Laredo with the convection remaining mainly south of the boundary.
1129 AM CDT Sat Mar 16 2024 -Seasonably warm today before a much cooler air mass moves into the area late this weekend. Prior to sunrise this morning, surface obs showed high pressure residing over KS. CAA will commence late today and continue through Sunday as a Canadian ridge travels south over the Northern High Plains. This pattern will cause temperatures to be about 15 degrees cooler tomorrow afternoon compared to today.
(This evening through Sunday) The large mid/upper low over Arizona that is trapped in the western CONUS rex block will continue to wobble through the short term period, but it is also progged to begin filling. Further to the east short wave ridging is likely to shift slightly westward back over the eastern part of the forecast area while some difluence aloft could still come into play across the western half. However, the main driver for precipitation across the forecast area tonight and Sunday will be the re-development of moist isentropic lift at the top of the low level inversion. This feature has driven the formation of fairly widespread light rain/heavy drizzle behind a departing mid/upper level short wave trough and its associated convection as well as being responsible for low stratus hanging in tough across the forecast area this afternoon.
200 PM EDT Sat Mar 16 2024 Temperatures will be unseasonably mild for the start of the weekend until a cold front ushers in a change by Sunday. Rather deep mixing of the airmass (up to 5-6kft) across Central and Southern PA, combined with relatively dry air will probably push sfc dewpoints/RH below guidance in many places throughout the Central Ridge and Valley Region and SE Piedmont this aftn. Max temps today won't be anywhere as warm as the last many days, but they will get milder today in the far NW (by ~1F), and still be 5-10F warmer than normal for all of Central PA. Vorticity rounding the base (and stretching out) of a progressive upper low over nrn ONT will drag a cold front into the CWA and touch off a patch/line of rain showers this evening.