Aikyam-Lab/Synoptic-Bench huggingface dataset:
(Today) Lingering rainfall/showers are beginning to taper off across NW AL in the wake of a cold front that has just about moved eastward thru NE AL. Cloud cover though lingers well back to the west across the MS River, as an upper trough axis lags behind the departing front. Skies though look to remain mostly cloudy thru the day, as the upper trough pattern gradually moves eastward thru the region. Cooler air is also beginning to spread into the area from the NW with the passing cold front. Max temps will likely occur this morning, with temps then remaining fairly steady in the lower/mid 40s thru much of the day.
1023 PM MST Thu Feb 16 2023 Current surface analysis shows frontal boundary/developing warm front from far eastern MT into western SD, with high pressure to the east-northeast of the region. A ridge is located across the Pacific NW, south- southwestward to NV and southern CA. Warming trend will continue late this week and into the weekend as flattening ridge over the western US moves east into the Plains. Frontal boundary over the area will continue to move slowly east-northeast as a warm front into Friday.
A few areas south are currently in the lower teens. Looking at the latest RAP40 500mb analysis in tandem with mid level water vapor imagery, a broad amplified ridge is currently making an eastward trek off the Rockies into the Plains region.
(Today and tonight) The current surface analysis shows a cold front approaching the area with a broken line of convection ahead of it.
344 AM EST Fri Feb 17 2023 A strong cold front will cross the area this morning and push to the east by early afternoon.
The cold front has now entered central areas and was just east of Jasper/Tuscaloosa/and Demopolis. Improving conditions are forecast through the day on Friday as the surface cold front moves east of the area toward sunrise. High temperatures will be noticeably cooler with readings from the low 40s northwest to the mid 50s southeast.
1250 AM EST Fri Feb 17 2023 Scattered showers will occur along a cold front as it crosses east through the Ohio Valley this evening. Dry and significantly colder air will rush in behind it, keeping highs on Friday only about a handful of degrees warmer than the morning low.
Synopsis/Forecast: Current consolidated troughing is pushing into the lower Great Lakes early this morning. Cold today with highs mainly in the low 20s. Low level ridge axis will continue to push eastward away from the Great Lakes on Saturday.
This morning: Clear skies and lighter winds resulted in temperatures dropping to the negative trends and as southerly winds increased we ended up with a transitional corridor of -25 to -32 wind chills, while the lowest temperatures are occuring where winds are calm in MN. Saturday: Technically the airmass aloft with be cooler than the afternoon/tonight period as a progressive cold front will have passed, however westerly flow aloft seas to near lee trough development in the west and continued southerly BL flow through the day Saturday. This should keep our temperatures in the 20s to near freezing once again.
The associated cold front will continue to approach the Florida Peninsula today. The highest chances of showers with a slight potential for thunderstorm development will be focused across the Nature Coast area, northern areas of Florida.
520 AM CST Fri Feb 17 2023 (Today) Low clouds will continue to clear out of the area early this morning, with a sunny and warmer day then expected as winds become more southwesterly by afternoon.
(Today through Saturday night) After a chilly start to the day, ridging on the backside of an exiting upper level disturbance will kick off a warming trend through the weekend for the Panhandles.
535 AM CST Fri Feb 17 2023 The positively tilted upper trof currently extending through the middle MS Valley will continue digging to the southeast today moving into the OH/TN Valleys by late this afternoon. The low levels are quite dry but there is a decent slug of mid-high level moisture, however said moisture actually lags the lift/forcing.
Temperatures trend a little warmer through the weekend.
422 AM MST Fri Feb 17 2023 Skies were clear across the forecast early this morning as a ridge of high pressure settled over the Rocky Mountain region overnight. However, cirrus generated by a closed low off the California coast moving north and eastward was approaching the forecast area and should reach the western zones by sunrise. Cirrus will continue to stream overhead tonight as the closed low shifts to waters off the southern California coast. Meanwhile, the ridge breaks down as a mid-level short wave trough approaches from the northwest.
520 AM CST Fri Feb 17 2023 Key Messages: - Weekend ridge building and above normal temperatures are expected with periods of sun and clouds.
537 AM CST Fri Feb 17 2023 (Today through Saturday night) After a chilly start to the day, ridging on the backside of an exiting upper level disturbance will kick off a warming trend through the weekend for the Panhandles.
Clear skies tonight will result sub- freezing temperatures along and north of I-10, ranging from 27 to 31 degrees.
A south to southeast flow will develop on Saturday as the ridge moves east.
520 AM CST Fri Feb 17 2023 (Today and tonight) High pressure settling in over much of West Central Texas today, along with continued cool northerly flow this morning and clear conditions will lead to below normal temperatures for today and tonight. Winds will begin to become more light and variable by this afternoon as the aforementioned high pressure centers over the area.
319 AM CST Fri Feb 17 2023 Forecast Key Points: - Patchy freezing fog possible early this morning over portions of north central into northeastern areas. Forecast Discussion: An elongated trough works east into the Great Lakes and southeastern CONUS with split flow in place again with the northern branch of the Westerlies into the northern tier states and southern Canada. A low amplitude ridge is centered across the Rockies and will influence the weather today over the local area. Overall through the forecast period, the upper air pattern remains active but little moisture leads to mainly wind shifts with dry weak frontal or surface trof passages. Winds do look stronger from the south into Saturday afternoon as a lee trough deepens across the area.
511 AM EST Fri Feb 17 2023 Showers will accompany an cold front early this morning followed by falling temperatures and scattered light snow showers during the day. High pressure will then provide a dry and relatively mild weekend. Cold front currently running roughly along a line from Clarion-->Pittsburgh-->Wheeling will continue east early this morning and is progged to be east of the ridges around sunrise. The core of the colder airmass will move over the area by late Friday with lows dipping into the lower 20s. High pressure will bring warmer temperatures and dry conditions Saturday.
Big Picture Overview: This morning a cutoff low just west of the US west coast will dive south and push our current high pressure off the east. In the wake of this, high pressure will rebuild over the north Pacific putting the central US into a broad trough, anchored by a strong Hudson Bay Low.
Under the influence of a cooler airmass, afternoon high temperatures to climb only into the low to mid 50s. Hires models suggest that drier air should erode the bulk of the cloud deck through daybreak with mostly sunny skies to prevail as mid to upper-level ridging builds areawide. Under light winds and mostly clear skies, temperatures to fall to near freezing tonight. Upper-flow to becoming southwest behind the departing ridge allowing for clouds to overspread the region by late Saturday afternoon.
544 AM CST Fri Feb 17 2023 The cold front that brought severe weather yesterday has pushed through the region leaving cold air behind it. By Friday evening, mid-level ridging will come into play, amplifying the cold air already in place. With all of these things in play, low temperatures really don't stand a chance of climbing above freezing (29-30F).
An area of stratus covered much of AR overnight, assocd with a mid lvl trof axis passing thru the region. The low clouds wl gradually dcrs fm the NW today as the mid lvl trof works east of the region. Highs wl be rather cool today, ranging fm the 40s to the lower 50s.
305 AM CST Fri Feb 17 2023 Key Messages: - Weekend ridge building and above normal temperatures are expected with periods of sun and clouds.
Today's highs will be a few degrees warmer than today, though some high clouds limit us from our full potential some. Given the best precip chances lie during the diurnal minimum and lows falling into the upper 20s to the mid 30s, some snow may mix in with rain, especially across the higher elevations. At best, overpasses and elevated could see a light dusting of snow in the higher terrain by Saturday morning.
* Much colder through the short term Early this morning, cyclonic flow behind a low pressure system is producing some scattered snow showers across central Indiana. A ridge of high pressure will move quickly across the area this evening and then settle south of the area. Winds will pick back up overnight as the high moves out of the area. This should help keep temperatures from bottoming out, but readings will still dip into the lower 20s.
530 AM CST Fri Feb 17 2023 A cooler and dry airmass is making its way across the Midsouth as the energy that brought flooding and severe thunderstorms to the region shifts off to the East. Expect cool mornings, but afternoon high temperatures should trend a bit warmer each day.
Latest water vapor satellite imagery and RAP upper air analysis depict a typically amplified pattern for mid-February, with a positively tilted trough extending from the Great Lakes southwestward into the southern plains, and a ridge over the Intermountain West. At the surface, high pressure that is currently centered over east-central NM/west-central TX will slide eastward, turning winds across our area to the south-southwest at around 10-15 mph. These downsloping winds coupled with clear skies will result in a markedly warmer afternoon Friday, with highs in the mid 40s to low 50s. Daytime Saturday, southwest winds will increase substantially, as the surface pressure gradient between high pressure over Dixie Alley and a deepening lee cyclone across the northern plains tightens directly over southwest KS.
343 AM CST Fri Feb 17 2023 The positively tilted upper trof currently extending through the middle MS Valley will continue digging to the southeast today moving into the OH/TN Valleys by late this afternoon. The low levels are quite dry but there is a decent slug of mid-high level moisture, however said moisture actually lags the lift/forcing.
515 AM CST Fri Feb 17 2023 (Today) Lingering rainfall/showers are beginning to taper off across NW AL in the wake of a cold front that has just about moved eastward thru NE AL. Cloud cover though lingers well back to the west across the MS River, as an upper trough axis lags behind the departing front. Skies though look to remain mostly cloudy thru the day, as the upper trough pattern gradually moves eastward thru the region. Cooler air is also beginning to spread into the area from the NW with the passing cold front. Max temps will likely occur this morning, with temps then remaining fairly steady in the lower/mid 40s thru much of the day.
Winds have been very light under the high pressure ridge, so wind chills haven't been too much of a problem, but with those temps it only takes a puff of wind so will keep Wind Chill Advisory going.
Forecast Key Points: - Patchy freezing fog possible early this morning over portions of north central into northeastern areas. Forecast Discussion: An elongated trough works east into the Great Lakes and southeastern CONUS with split flow in place again with the northern branch of the Westerlies into the northern tier states and southern Canada. A low amplitude ridge is centered across the Rockies and will influence the weather today over the local area. Overall through the forecast period, the upper air pattern remains active but little moisture leads to mainly wind shifts with dry weak frontal or surface trof passages. Winds do look stronger from the south into Saturday afternoon as a lee trough deepens across the area.
Winds should diminish later in the day and overnight as high pressure tracks eastward across north Tx and closer to the region.
653 AM EST Fri Feb 17 2023 A strong cold front will cross the area this morning. Showers along and ahead of the strong cold front will track through the eastern half of central PA through 800 AM. Snow showers over the western mtns (and possibly a change to a brief 1-2 hour period of wet snow shortly after daybreak Friday acrs the Mtns north and east of KIPT) could bring a minor accumulation over the higher terrain through tonight. High pressure/lowering inversion heights building into the area by Saturday morning will spell an end to the snow showers over the western mtns.
(Today) Low clouds will continue to clear out of the area early this morning, with a sunny and warmer day then expected as winds become more southwesterly by afternoon.
339 AM CST Fri Feb 17 2023 The cold front that brought severe weather yesterday has through the region leaving cold air behind it. By Friday evening mid-level ridging will come into play, amplifying the cold air already in place. With all of these things in play, low temperatures really don't stand a chance of climbing above freezing.
341 AM MST Fri Feb 17 2023 Upper ridging sits over the Rockies, with a split trough over the west coast, and its low spinning off the coast of CA. As the northern part of the aforementioned trough scoots across the northern US today, NW winds will increase (but remain below advisory criteria) across NW SD.
-Cooler temperatures today Breezy conditions will continue this morning with high pressure settling in over south Texas. Lows tonight will drop into the 30s inland with lows in the low 40s along the coast. Southeasterly flow will prevail on Saturday, bringing warmer temperatures and moisture back into the area.
549 AM CST Fri Feb 17 2023 (Today through Saturday) Currently watching the cold front slide into the southeast portions of the area. Temperatures will be cooler this afternoon with 40s and 50s across the area. Skies clear out during the afternoon and high pressure builds.
524 AM CST Fri Feb 17 2023 (Today and tonight) Warmer temperatures under sunny skies expected today but still about 5 to 10 degrees below average. With the south winds being maintained tonight, along with increasing high level clouds, lows tonight/Saturday morning will be about 10 to 15 degrees warmer than this morning, mostly upper 20s and lower 30s. Most locations will still see freezing temperatures, but outside of southeast portions of Oklahoma, frost should not be a problem with the increased wind and low RH.
A majority of the Lower Keys have received rainfall, aside from Key West who has remained just on the outskirts of the activity. Mugginess is in full force with temperatures in the mid to upper 70s and dewpoints in the lower 70s.
917 AM EST Fri Feb 17 2023 A line of a showers will push through the area today ahead of a cold front.
407 AM MST Fri Feb 17 2023 Skies were clear across the forecast early this morning as a ridge of high pressure settled over the Rocky Mountain region overnight. However, cirrus generated by a closed low off the California coast moving north and eastward was approaching the forecast area and should reach the western zones by sunrise. Cirrus will continue to stream overhead tonight as the closed low shifts to waters off the southern California coast. Meanwhile, the ridge breaks down as a mid-level short wave trough approaches from the northwest.
A cooler and dry airmass is making its way across the Midsouth as the energy that brought flooding and severe thunderstorms to the region shifts off to the East. Expect cool mornings, but afternoon high temperatures should trend a bit warmer each day.
612 AM EST Fri Feb 17 2023 (Today and tonight) The current surface analysis shows a cold front approaching the area with a broken line of convection ahead of it.
The western Atlc high pressure ridge axis continues to slide south/east away from ECFL. A weakening cold front approaches the I-4 corridor this evening and continues to sweep across the remainder of ECFL overnight. The Atlc ridge axis continues to slide south/east away from the local waters. Cold front pushes quickly SE across the waters with a rapid increase in north winds 20-25 knots spreading southward over the local Atlc waters beginning late this evening and reaching the southern waters before sunrise Sat. The cold front advances toward the I- 4 corridor this evening with a broken line of weakening shower activity.
635 AM EST Fri Feb 17 2023 A strong cold front will cross the area this morning. Showers along and ahead of the strong cold front will track through the eastern half of central PA through 800 AM. Snow showers over the western mtns (and possibly a change to a brief 1-2 hour period of wet snow shortly after daybreak Friday acrs the Mtns north and east of KIPT) could bring a minor accumulation over the higher terrain through tonight. High pressure/lowering inversion heights building into the area by Saturday morning will spell an end to the snow showers over the western mtns.
359 AM CST Fri Feb 17 2023 The cold front that brought severe weather yesterday has pushed through the region leaving cold air behind it. By Friday evening, mid-level ridging will come into play, amplifying the cold air already in place. With all of these things in play, low temperatures really don't stand a chance of climbing above freezing (29-30F).
Surface ridging is building in from the Plains. The parent trough behind yesterday's storm system is approaching and should pass overhead by mid morning today. Wind chills will dip below freezing which will probably feel bitingly cold after our recent warm snap. By midweek, a strong ridge is expected to develop over the southeast U. with upstream troughing digging across the western U. Ahead of the main longwave trough is a piece of energy that ejects out of the southwest U.
Short range ensembles are in good agreement with upper low tracking southward down the Eastern Pacific, well off the coast over the weekend. This track will keep the entire area dry with a gradual warming trend, as weak ridge builds overhead.
712 AM EST Fri Feb 17 2023 Seasonable conditions return today in the wake of a cold front, with scattered rain and snow showers persisting into late this afternoon.
518 AM CST Fri Feb 17 2023 (Today and tonight) Today will start off cold with temperatures ranging from the low teens to the 20s at sunrise. Temperatures tonight will be warmer with lows in the 20s and 30s due to southerly winds and increasingly cloudy skies.
658 AM EST Fri Feb 17 2023 (Today through Saturday) Ridging will lose its hold on South Floridaâs weather conditions this weekend as a frontal boundary pushes across the southeast US towards the Florida peninsula. With this southerly flow and with increasing moisture at the lower levels, a slight chance of showers and thunderstorms reappears in the forecast, with the higher probabilities (in the 20-30% range) focused along the East Coast sea breeze boundary in the afternoon. Temperatures will drop by a few degrees as winds increase from the NE behind the front, but do not expect a dramatic cool down, as the high temperatures will still reach the upper 70s, and the lows will only drop to the low 60s in the Lake Okeechobee area, and lower 70s along the coasts.
526 AM CST Fri Feb 17 2023 (Today through Saturday) The cold front is now well east of Middle Tennessee, although there is plenty of lingering rain still to move through -- most of it now occurring east of I-65. Needless to say, cold air is filling in behind the cold front in earnest. Friday night's lows will drop well into the 20's, but look for a warming trend to commence as early as Saturday as high pressure moves across the mid state.
Line of high reflectivity lining up with cold front at the time of this writing.
(Today through Saturday) Cold front has moved through the area and NW winds are bringing the cool dry air in.
408 AM EST Fri Feb 17 2023 Showers will accompany an cold front early this morning followed by falling temperatures and scattered light snow showers during the day. High pressure will then provide a dry and relatively mild weekend. Cold front currently running roughly along a line from Clarion-->Pittsburgh-->Wheeling will continue east early this morning and is progged to be east of the ridges around sunrise. The core of the colder airmass will move over the area by late Friday with lows dipping into the lower 20s. High pressure will bring warmer temperatures and dry conditions Saturday.
1130 AM CST Fri Feb 17 2023 The positively tilted upper trof currently extending through the middle MS Valley will continue digging to the southeast today moving into the OH/TN Valleys by late this afternoon. The low levels are quite dry but there is a decent slug of mid-high level moisture, however said moisture actually lags the lift/forcing.
129 PM CST Fri Feb 17 2023 High pressure dominates the area, which has brought along some beautifully clear skies and sunshine. Ridge of high pressure over the region continues to give us quiet and clear weather. Tonight, clear skies and fresh snow will allow temperatures through much of the area to plummet again into the low teens. Temperatures will climb above normal tomorrow, as we get some southwesterly flow in the low levels. High pressure moves off to the east, as the next wave passes through the area.
137 PM EST Fri Feb 17 2023 Seasonably cold conditions will prevail through tonight, with rain/snow showers gradually diminishing as high pressure builds.
1111 AM EST Fri Feb 17 2023 The anticipated cold front is now bisecting the CWA from SW to NE with cooler and cloudy conditions to the NW and rain showers to the SE. Expect the lingering showers and cold front to SE of the CWA by 00Z. Stronger winds and cooler air will fill in behind the front creating a cold night and cool day tomorrow. Line of high reflectivity lining up with cold front at the time of this writing.
232 PM EST Fri Feb 17 2023 A cold front will move through the region this afternoon.
High pressure is located offshore with a weak trough to the north and a closed low to the southwest off the California coast.
1253 PM EST Fri Feb 17 2023 A cold front will move through the region this afternoon.
The higher elevations on the Cumberland Plateau may see temperatures hover around or just above freezing today, which could allow for some light snow accumulations on elevated surfaces, but little to no impacts are expected. (Today through Saturday) The cold front is now well east of Middle Tennessee, although there is plenty of lingering rain still to move through -- most of it now occurring east of I-65. Needless to say, cold air is filling in behind the cold front in earnest. Friday night's lows will drop well into the 20's, but look for a warming trend to commence as early as Saturday as high pressure moves across the mid state.
359 PM EST Fri Feb 17 2023 A trough will push east of the local area tonight before high pressure builds over the forecast area through the weekend.
336 PM EST Fri Feb 17 2023 A passing cold front will bring some showers through this evening and a brief end to the unseasonably warm temperatures. Cooler and drier weather will return late tonight through the weekend with much warmer temperatures again next work week.
1114 AM CST Fri Feb 17 2023 (The rest of today ) Temperatures will be warmer this afternoon with light winds and sunny skies, but will still be a bit below average.
(The rest of today ) Temperatures will be warmer this afternoon with light winds and sunny skies, but will still be a bit below average.