Aikyam-Lab/Synoptic-Bench huggingface dataset:
pdf High pressure east of the area will dominate the local weather pattern today and tonight with just some high cirrus across the region. High temperatures will generally be in the lower 90s except in the upper 70s to lower 80s along the coast as a sea breeze develops this afternoon. Overnight temperatures will be in the lower to mid 60s inland and in the mid to upper 60s for the beaches.
645 AM CDT Fri Apr 19 2024 - Dry and much cooler conditions can be expected today through the weekend.
552 AM EDT Fri Apr 19 2024 High pressure over the area today will weaken as a cold front approaches the area from the west by tonight. The cold front moves through the area tonight and into early Saturday, followed by a secondary dry cold frontal passage Saturday afternoon. High pressure builds in for the beginning of the week. High pressure returns to end the week. Mainly dry conditions are expected for much of the day today with the chance of showers increasing from west to east late into the afternoon and into the evening with the approach of the cold front. A secondary cold front moves through during the afternoon and evening Saturday and while it is expected to be a dry passage, a stray shower can't be ruled out.
734 AM EDT Fri Apr 19 2024 (12Z TAFS) VFR conditions expected trough the period with light and variable winds over the next few hours.
High pressure will maintain very nice early spring weather across most of SW Oregon and Northern California today. Dry weather is expected tonight into Saturday as a weak short wave upper ridge swings through. However, a cold front will approach the coast on Saturday.
In the interior of southern FL, the highs may warm into the low 90s. Sea breezes along both the Atlantic and Gulf coast will help moderate the heat some each afternoon, but high temperatures could still reach the upper 80s and even the lower 90s each day, especially over the interior/southwest FL. Temperatures along the immediate coasts will remain in the low-mid 80s.
Cooler conditions are expected today and tomorrow with light drizzle possible each morning.
1014 AM EDT Fri Apr 19 2024 A cold front will move east through the area this morning, bringing an end to the precipitation threat once it passes by. High pressure will build east into the Ohio Valley tonight into Saturday.
647 AM EDT Fri Apr 19 2024 A cold front will move east through the area this morning, bringing an end to the precipitation threat once it passes by. High pressure will build east into the Ohio Valley tonight into Saturday.
(Today) The cold front at the surface had exited Southeast Oklahoma early this morning.
High clouds currently moving across the area this morning will push on east later this morning as a weak upper level trof moves into the state. Slight cooler on Saturday with above mentioned trof moving into New Mexico.
1002 AM EDT Fri Apr 19 2024 * Much cooler weather this weekend.
859 AM EDT Fri Apr 19 2024 Most of the low clouds have lifted across the area and beautiful skies are anticipated through the day. This is thanks to a fairly dry airmass over the Peninsula as high pressure continues to dominate weather conditions. Slightly warmer conditions are expected with highs climbing up into the upper 80s and low 90s.
635 AM CDT Fri Apr 19 2024 (Today) The cold front at the surface had exited Southeast Oklahoma early this morning.
923 AM EDT Fri Apr 19 2024 High pressure over the area will weaken this afternoon as a cold front approaches the area from the west by tonight. The cold front moves through the area tonight and into early Saturday, followed by a secondary dry cold frontal passage Saturday afternoon. High pressure builds in for the beginning of the week. High pressure returns to end the week. A secondary cold front moves through during the afternoon and evening Saturday and while it is expected to be a dry passage, a stray shower can't be ruled out.
WEATHER PATTERN OVERVIEW: NE Montana remains on the southwest edge of a slowly departing upper level low pressure system today, supplying enough cold air advection and instability for isolated wind-driven snow showers.
Most of the area remains dry today with the only chance for rain remaining north of the Highway 84 corridor this afternoon. A cold front slides toward the area throughout the day, likely approaching our northernmost counties late tonight. The front will likely pump the breaks as it moves into our CWA given the zonal flow aloft and weak surface ridging sitting to our south over the eastern Gulf.
Attention will then turn to a second round of activity that is expected to initialize along a sfc cold front that is currently entering our far western zones once the atmosphere destabilizes. Chances for precip will exit as cold front exits to the southeast this evening.
Accumulating snow is only expected along the highest peaks though, where up to one inch will fall through early Saturday. Daytime highs today will run several degrees warmer than the previous couple of days, falling around five degrees or less short of climatological norms. Tomorrow will be noticeably warmer across the region as high pressure builds in and high temperatures increase by another ten degrees, give or take. Temperatures will run on the warm side of normal with the eastern Magic Valley and Snake Plain warming into the 60s and 40s and 50s in the higher terrain.
The low-level temperature inversion that has been based around 900 mb has lifted to around the 850 mb isobaric surface. From synopsis, high pressure over the western Atlantic will maintain gentle to occasionally moderate east to southeast breezes across the Keys coastal waters through the weekend.
637 AM EDT Fri Apr 19 2024 A cold front will move east through the area this morning, bringing an end to the precipitation threat once it passes by. High pressure will build east into the Ohio Valley tonight into Saturday.
439 AM PDT Fri Apr 19 2024 Cooler today with coastal low clouds extending inland across most of the valleys this morning and with gusty southwest to west winds for the mountains and deserts for this afternoon into tonight with the stronger gusts to 45 to 55 mph.
624 AM CDT Fri Apr 19 2024 (Today through Saturday Night) A cold front will continue to push through the state to begin the period bringing the chance for showers and thunderstorms through the early morning hours Friday. An upper level trough will dive down from the Central Plains Saturday bringing an additional round of widespread rain to the state.
(Today and tonight) The cooler-than-average weather will continue today behind the cold front that moved through the area yesterday.
315 PM EDT Fri Apr 19 2024 A cold front will bring rain showers to the region this afternoon into tonight.
132 PM EDT Fri Apr 19 2024 Passing cold front brings showers/storms through late this evening.
Breezy cool weather is in place as our area remains on the southern periphery of a very cold upper trof of weather in the upper Great Lakes and southern Canada. That wind will both keep frost formation to a minimum, but also increase to impact of subfreezing temperatures. A freezing warning will be issued for much of eastern Iowa, and far northwest Illinois for tonight into 8 am Saturday.
313 PM EDT Fri Apr 19 2024 Passing cold front brings showers/storms through late this evening.
Tonight the broad surface frontal system will continue to move east into Canada sending a cold front southeast towards the south central states. Temps in the northwest will be seasonable in the in the low - mid 50s, while low temps in the southeast will be seasonably warm in the low - mid 60s.
318 PM EDT Fri Apr 19 2024 A secondary cold front will move through the area late tonight into Saturday.
46 inches Other than the rain, cooler temperatures will be observed tomorrow with highs in the 50's and 60's.
1224 PM CDT Fri Apr 19 2024 - Frost and freezing overnight lows are expected through the weekend as temperatures dip into the 20s across portions of the area. A large upper level low will lumber to the east through the short term. This low will aide in bringing colder temperatures into the area today. This low will also bring windy conditions to the area with gusts approaching 30kts this afternoon. While there is some uncertainty about frost development due to the winds tonight, lows will be near freezing so additoinal frost and freeze products are likely needed. H92 temps barely get above freezing. The HRRR depicts some showers underneath the cyclonic flow of the upper level low. Saturday night looks like the coldest for the area with lows at or below freezing across most of the area.
Satellite imagery shows just a few high clouds in place across much of the region with a bit more in place over the higher terrain. A warming trend is underway today with our valleys climbing into the low to mid 50s this afternoon; 40s in the mountains. This warming will continue into Saturday as 60s should return to valleys with low to mid 50s in the higher terrain with more sun than clouds expected. Mon is dry again, then low pressure moving in from the southwest arrives sometime on Tue afternoon/Tue night. Cold core aloft with this low is enough to generate showers and thunderstorms for Wed through Thu afternoons.
133 PM EDT Fri Apr 19 2024 * Much cooler weather this weekend.
1201 PM EDT Fri Apr 19 2024 High pressure over the area will weaken this afternoon as a cold front approaches the area from the west by tonight. The cold front moves through the area tonight and into early Saturday, followed by a secondary dry cold frontal passage Saturday afternoon. High pressure builds in for the beginning of the week. High pressure returns to end the week. A secondary cold front moves through during the afternoon and evening Saturday and while it is expected to be a dry passage, a stray shower can't be ruled out.
However, the interior temperatures, especially in SW FL, there is potential to rise into the low 90s. With the influence of the RH values and heat indices, it will feel a few degrees warmer across portions of the region. Overnight lows will fall into the 60s in a majority of South FL, with the coast keeping to the low 70s.
A fairly warm and rain free couple of days as high pressure remains over the Peninsula. Temperatures climb up into the low 90s in most areas, except for the immediate coast during this time.
A ridge of high pressure will continue to build over the region today, with warm daytime temperatures anticipated. Overnight lows will once again dip below freezing across the area tonight, due to clear skies across the region. The forecast has been updated to increase ridgetop and valley winds this morning, otherwise, the forecast is on track. Increasing high clouds this afternoon with mid-level cumulus developing over the higher terrain.
Most of the low clouds have lifted across the area and beautiful skies are anticipated through the day. This is thanks to a fairly dry airmass over the Peninsula as high pressure continues to dominate weather conditions. Slightly warmer conditions are expected with highs climbing up into the upper 80s and low 90s.
Temperatures are rising above freezing so impacts will not be too much more of a problem and should be able to let it expire at 16Z. With some reports of flurries as far south as Grand Forks, did expand the likely POPs a bit further south into the Highway 2 corridor. Short wave trough, vort lobe, extends WSW into southern Saskatchewan at 07z. This vort lobe/short wave trough will move into the Red River valley this aftn.
1224 PM CDT Fri Apr 19 2024 (Today and tonight) The cooler-than-average weather will continue today behind the cold front that moved through the area yesterday.
Isentropic forcing in advance of the upper forcing in association with the upper trough itself will result in increasing convective coverage near and north of the I-20 Corridor after midnight tonight. Likewise, ascent from the upper trough will only increase during the day Saturday and especially Saturday Night with arrival of the upper trough with widespread accumulating rainfall totals near 1-3 inches with isolated higher amounts.
Water vapor loop continues to show several vorts rotating around the upper low over Ontario, with one moving through northwestern MN currently and likely helping with our current round of snow showers in that area.
200 PM CDT Fri Apr 19 2024 - Mostly dry and seasonally cooler conditions can be expected through the weekend.
However, the combination of isentropic upglide and dynamic lift from an approaching mid/upper level short wave trough should be sufficient to release the instability. Upglide on near the 295 and 300 K surfaces will initially act on the elevated instability across the Rolling Plains late tonight, but increasing lift from the approaching trough will see convective initiation across eastern New Mexico with showers and some thunderstorms moving eastward across the forecast area. The inherited PoPs of near or at 100 percent looks okay although there is some concern about with how widespread the response to the lift will be given the open nature to the trough.
Cloud cover and north to east winds will keep conditions noticeably cooler today than previous days with highs mainly in the 70s to the north and 80s in the south.
1235 PM CDT Fri Apr 19 2024 (Today through Saturday Night) Active spring weather pattern expected on SAT: Slight and Marginal Risk of Excessive Rainfall (levels 2 and 1 of 4) Marginal Risk of Strong or Severe Storms (level 1 of 5) Slightly drier/cooler air will be filtering into the northern half of the CWA (mainly north of the I-10 corridor) through this afternoon as the cold front slides into SE TX before stalling. Guidance is continuing to favor locations north of the US-59/I- 69 corridor for the highest POPs.
134 PM EDT Fri Apr 19 2024 Passing cold front brings showers/storms through late this evening.
(This evening through Saturday night) A fairly broad upper level trough is currently moving east through the Great Lakes. The southern side of this feature is relatively flat at this time which is why the associated cold front is struggling to make southward progression. Saturday will be similar to today as the trough continues east of the Great Lakes with the base of the trough still quite flat without much southward movement. The cold front will be basically crawling south into the CWA Saturday. Highs will be limited by slightly cooler air north of the boundary and clouds to the south of it.
A weak trough pushing across the Great Basin this afternoon is sending a diluted plume of moisture onto the West Slope. The main trough passage will push through during the overnight hours tonight, with a few snow showers likely at the higher elevations above 8-9k feet. Winds will shift more northwesterly behind the trough on Saturday and with moisture hanging around will likely spark a few showers across much of the high country. These showers will stick to rain, except at the higher elevations, with gusty outflows expected under virga showers in the valleys. Winds settle towards evening and skies are expected to clear as the remaining moisture gets scoured out by the dry air spilling over the front of the building ridge.
100 PM EDT Fri Apr 19 2024 High pressure begins to move east of the region today.
148 PM EDT Fri Apr 19 2024 High pressure will build east into the Ohio Valley tonight into Saturday.
153 PM CDT Fri Apr 19 2024 - Chilly start to the weekend with temps near/below freezing expected for many locations tonight and Saturday night.
Near-freezing temperatures are forecast tonight and Saturday night for far northern Missouri.
(Rest of today through Saturday) At midday, a cold front was moving across Middle Tennessee. On the southeast side of the front including the Plateau, temperatures had warmed into the lower 70s with partial sunshine. Look for the low clouds and cooler temps to continue spreading southeastward through the rest of the day. Through the weekend, the center of a large, cool high pressure system will move from Canada down the plains, eventually to the Mid Ms Valley.
- Potential for patchy frost/temperatures briefly near freezing toward sunrise across our northwest cwa.
131 PM MDT Fri Apr 19 2024 Satellite imagery shows cyclonic NW flow remaining over the region, though we are starting to see height rises as parent upper low continues to move eastward. This high will sag slowly to the southeast and weaken over the next 24 hours. still several degrees cooler than normal. Saturday night will be a milder night, and still dry underneath the ridge, with lows in the 20s to lower 30s.
Northeast winds continue to advect in cooler temperatures helping temps drop back down to the lower 50s to upper 40s (except along the Rio Grande) tonight. An upper level trough moving across the western U. will increase lift causing light rain and showers to develop near sunrise Saturday mainly from the Permian Basin south into the lower Trans Pecos and Big Bend. The highest rain chances and accumulations will be in the eastern Basin and decrease to the west with low rain chances in the western 1/3 of the CWA.
As high pressure builds on Saturday, expect high temps to finally warm to more seasonable values for this time of year, which range from the mid 50s to mid 60s.
1211 PM EDT Fri Apr 19 2024 High pressure over the area will weaken this afternoon as a cold front approaches the area from the west by tonight. The cold front moves through the area tonight and into early Saturday, followed by a secondary dry cold frontal passage Saturday afternoon. High pressure builds in for the beginning of the week. High pressure returns to end the week. A secondary cold front moves through during the afternoon and evening Saturday and while it is expected to be a dry passage, a stray shower can't be ruled out.
pdf Unseasonably warm conditions continue under the influence of a dominating upper ridge. Fair conditions continue into tonight as thin cirrus pushes through the ridge flow and a weakening front approaches from the northwest.
A bit cooler across the board today with cloud cover in addition to a deeper marine influence. Expecting this to remain in place through into Saturday as the responsible upper low moves through and the onshore flow increases through tomorrow.
203 PM EDT Fri Apr 19 2024 Moisture increases into Saturday as a cold front moves toward the area.
An area of low pressure remains centered over Ontario this afternoon which is forecasted to slowly prog eastward tonight into tomorrow thus leaving MN and WI on the western periphery of the current troughing pattern. Strong WNW flow and CAA will continue to persist through the rest of today before h850 thermal ridging tries to force warmer air back into the northern plains late this weekend. With vegetation greening up and temperatures subfreezing, Freeze Warning headlines are in effect for both central and southern MN and western WI from midnight to 7 AM Saturday morning.
1237 PM CDT Fri Apr 19 2024 (Rest of today through Saturday) At midday, a cold front was moving across Middle Tennessee. On the southeast side of the front including the Plateau, temperatures had warmed into the lower 70s with partial sunshine. Look for the low clouds and cooler temps to continue spreading southeastward through the rest of the day. Through the weekend, the center of a large, cool high pressure system will move from Canada down the plains, eventually to the Mid Ms Valley.
342 PM CDT Fri Apr 19 2024 - A Freeze Warning for temperatures at or below freezing is in effect tonight into Saturday morning for portions of south central Nebraska.
1258 PM EDT Fri Apr 19 2024 Passing cold front brings showers and storms through late this evening. Cooler and drier this weekend, the slowly warming into mid-week. Cold front, currently near the Ohio River will continue to push east this afternoon and evening, ending up east of the CWA late tonight.
An upper level trough will be centered across southern California and western Arizona this evening. The aforementioned upper level trough will slowly approach the forecast area on Saturday. The highest totals look to be across the Big Country. Highs will be in the mid to upper 50s across the Big Country to the low to mid 60s across most of the rest of the region. (Saturday night through next Friday) Precipitation will begin to decrease from west to east Saturday night, as a the short wave trough moves east of the area.
Do think once convection fires, it could be more organized than the high res models are indicating.
Stacked ridging continues over the region but is slowly weakening over the weekend as the warm and dry conditions persist. A fairly warm and rain free couple of days as high pressure remains over the Peninsula. Temperatures climb up into the low 90s in most areas, except for the immediate coast during this time.
703 PM EDT Fri Apr 19 2024 Seasonably cool temperatures and dry conditions are expected Saturday in the wake of a cold front.
An area of low pressure remains centered over Ontario this afternoon which is forecast to slowly move eastward tonight into tomorrow, thus leaving MN and WI on the western periphery of the current troughing pattern. Strong WNW flow and CAA will continue to persist through the rest of today before h850 thermal ridging tries to force warmer air back into the northern plains late this weekend. With vegetation greening up and temperatures subfreezing, Freeze Warning headlines are in effect for both central and southern MN and western WI from midnight to 7 AM Saturday morning.
754 PM EDT Fri Apr 19 2024 A secondary cold front will move through the area late tonight into Saturday.
329 PM MDT Fri Apr 19 2024 - Freezing Drizzle and Dense Fog will be the main concerns tonight especially between Cheyenne and the I-80 Summit.
757 PM EDT Fri Apr 19 2024 Moisture increases into Saturday as a cold front moves toward the area.
Breezy cool weather is in place as our area remains on the southern periphery of a very cold upper trof of weather in the upper Great Lakes and southern Canada. That wind will both keep frost formation to a minimum, but also increase to impact of subfreezing temperatures.
710 PM EDT Fri Apr 19 2024 * Much cooler weather this weekend.
Dry and warmer conditions will push in to end the weekend.
542 PM CDT Fri Apr 19 2024 - Chilly start to the weekend with temps near/below freezing expected for many locations tonight and Saturday night.
724 PM EDT Fri Apr 19 2024 Passing cold front brings showers through late this evening.
The rest of the forecast is on track; expect cloudy skies and temperatures in the low 60s tomorrow with intermittent showers.
731 PM CDT Fri Apr 19 2024 (This evening through Saturday night) A fairly broad upper level trough is currently moving east through the Great Lakes. The southern side of this feature is relatively flat at this time which is why the associated cold front is struggling to make southward progression. Saturday will be similar to today as the trough continues east of the Great Lakes with the base of the trough still quite flat without much southward movement. The cold front will be basically crawling south into the CWA Saturday. Highs will be limited by slightly cooler air north of the boundary and clouds to the south of it.
Latest WV imagery continues to depict southwest flow over Arizona and New Mexico ahead of an approaching upper level trough currently over southern California. This feature will weaken and progress east of the area by Saturday morning, with lighter winds and high temperatures a few degrees cooler to start the weekend. High pressure aloft will follow and build over the region resulting in a couple degrees of warming to start the work week.
Cooler temperatures are forecast tomorrow with clouds and north winds persisting. (Rest of today through Saturday) At midday, a cold front was moving across Middle Tennessee. On the southeast side of the front including the Plateau, temperatures had warmed into the lower 70s with partial sunshine. Look for the low clouds and cooler temps to continue spreading southeastward through the rest of the day. Through the weekend, the center of a large, cool high pressure system will move from Canada down the plains, eventually to the Mid Ms Valley.
610 PM CDT Fri Apr 19 2024 - Mostly dry and seasonally cooler conditions can be expected through the weekend.