Aikyam-Lab/Synoptic-Bench huggingface dataset:
Freeze warning for this morning was cancelled as temperatures rose above freezing. Eastern portions of the area ended up not seeing subfreezing temperatures due to lingering cloud cover. Sub-Freezing Weather. Our southeastern counties are still hovering just above freezing at 4 AM due to the gusty winds and clouds. In coordination with surrounding NWS offices to our southeast we will wait a few more hours to see if we end up freezing in places like Hebron and Beloit and then will consider possibly coordinating another freeze warning for areas that don't see a killing freeze this morning. Forecast looks to remain dry as the upper level low continues to lift and move over the Great Lakes region.
Mostly dry conditions will prevail tomorrow, but some of the high-res models show some isolated showers across the extreme western CWA.
Overnight tonight the main story is freezing temperatures as the entire area is likely to fall into the 28-33 degree range. While skies will be clearing, the wind is likely to continue low level mixing through the night which will help keep air temperatures a bit warmer. In any valleys where the winds are lighter or even calm for an hour or two, can expect air temps to get quite a bit cooler, but believe this will be the exception and a vast majority of the area will maintain wind, boundary layer mixing, and thus have low temperatures hold above 28. Saturday will be windy from the west once again but warmer with southern parts of the area well into the 50s. Then tomorrow night, winds will relax and clear skies will allow temperatures to fall below freezing once again.
240 PM EDT Fri Oct 11 2019 Shower chances return early tomorrow as a cold front passes.
251 PM EDT Fri Oct 11 2019 The well advertised cold front is currently pushing through western Kentucky and southern Illinois at this hour. Otherwise, tomorrow will be one of the cooler days we have experienced in quite some time in the post-frontal airmass. This flow will have little impact on the temperature with clear skies and near calm surface winds as the region sits under high pressure centered over West Virginia.
339 PM EDT Fri Oct 11 2019 Shower chances return early tomorrow with passage of a cold front.
he main upper level low is to the northwest across the Upper Midwest. At the surface, a cold front extends southward from a low near International Falls, MN to near Chicago to near Memphis. The upper level trough to the north will lift into the Great Lakes with zonal flow aloft across the southern Appalachians. Temperatures will be noticeably cooler on Saturday with lingering cloud cover continuing into the early afternoon. There maybe some clearing during the afternoon but with northwesterly winds behind a cold front, clouds usually tend to linger a bit longer than models anticipate.
The ongoing forecast is in good shape with cloud cover increasing this afternoon and evening ahead of an approaching cold front. The upper level pattern is characterized by a ridge axis across the southern Appalachians stretching northward into the eastern Great Lakes. Further to the northwest, there is closed upper low across Minnesota. The upper ridge will quickly shift east and flatten today, but with high heights aloft and mostly sunny skies into early this afternoon, high temperatures will be well above normal into the upper 70s and low 80s for most locations.
Mix of IFR/MVFR ceilings in the wake of the cold front.
1259 PM CDT Fri Oct 11 2019 The cold front is through the state now and rain showers extend back to the Little Rock and Arkadelphia areas. Currently, a cold front is moving through the state towards the SE, resulting in strong sustained NW winds of 15 kts, with gusts up to 20 kts possible.
233 PM CDT Fri Oct 11 2019 The main concern over the next 24 hours is with the likelihood for widespread freezing temperatures early Saturday morning. Surface temps look to fall below freezing beginning around midnight across northern Missouri and at or below freezing across central Missouri by 3 am. Temps will then remain at or below freezing until 7 or 8 am Saturday morning. With warm advection trends back in place tomorrow morning, afternoon highs will warm up into the low 60s across the area. Saturday afternoon conditions will be ideal, but gusty, as dew points remain in the low 30s.
The low then takes a westward jog and wrap-around snow showers spread back in.
131 PM MDT Fri Oct 11 2019 The low pressure system continues to shift toward the Great Lakes region, allowing skies to clear from west to east across the northern plains. Still beneath the upper trough, the region will remain chilly and breezy Saturday.
231 PM CDT Fri Oct 11 2019 Surface observations this afternoon show cold front has pushed southeastward to near Murray, KY. Extensive showers and a few thunderstorms have developed along and ahead of the front, and this rain will spread across the entire area the rest of today into tonight as the cold front pushes through. Highs tomorrow will be 15-20 degrees cooler than we saw today and only reach the upper 50s to low 60s.
The cold front that moved thru yesterday is now pushing into the lower Mississippi and Ohio Valleys. High pressure will continue to build into the area, and winds are expected to drop off by late afternoon. Urban locations may stay just above freezing, but most outlying areas will see readings at or below freezing by Saturday morning.
230 PM CDT Fri Oct 11 2019 A deep upper low is currently centered over the eastern Dakotas slowly moving eastward into Minnesota. Saturday will be significantly warmer than today, partially aided by more westerly, downslope winds at the surface. High temperatures should range from the mid 50s to the lower 60s. Saturday night will be similar to the preceding couple nights, just possibly a few degrees warmer, especially in northern Kansas.
1215 PM EDT Fri Oct 11 2019 A dry pressure ridge will dominate through tonight. A cold front will approach Saturday. Expect highs in the low to mid 80s. Overnight temperatures expected to be slightly warmer than last night with some high clouds approaching around dawn. We leaned toward the higher temperature guidance which is usually best just ahead of cold fronts. The models have been consistent with moisture diminishing along the front with lingering h5 ridging plus h85 ridging along the Gulf Coast further limiting moisture.
1227 PM CDT Fri Oct 11 2019 Upper level trough with an anomalous cold air core has brought winter weather to the upper plains. Wind gusts of nearly 40mph made it feel all the cooler. By 0Z Saturday morning, wind speeds will slow and temps will begin to slip sub-freezing in northern Nebraska. While temperatures will be 5 to 15 degrees warmer, they'll remain below seasonal norms with highs ranging from the mid 40s north to near 60 along the KS state line.
Cold front looks to be just past CLL this morning and on the doorstep of UTS.
After 03z, IFR ceilings should develop as a cooler and more stable airmass advects into the low levels.
1125 AM MDT Fri Oct 11 2019 As yesterday's storm passes into the high plains today, weakening cold northwest flow aloft will spread over the area. Brisk northwest flow will gradually decrease as a ridge builds over the Great Basin. The ridge will gradually push the jet stream north so winds will decrease.
A cold front will move through Middle Tennessee terminals this evening and overnight.
The Florida Keys remain under the control of high pressure over the Eastern United States which supports moderate northeast to east breezes across the islands. The dominant weather feature over the next seven days will be the evolution of the mean layer ridging currently centered over Mexico.
High pressure strengthening over our area today with visible imagery only indicating some mainly thin high clouds over central CA. SREF indicating offshore p-grads diminishing this evening as high pressure continues to strengthen over the area.
215 PM MDT Fri Oct 11 2019 Quiet weather expected across the CWA through the weekend with clear skies and warmer temperatures.
125 PM EDT Fri Oct 11 2019 Dry weather and warmer temperature can be expected today under high pressure. Shower chances return early tomorrow as a cold front passes.
Temperatures may actually rise across northwest Oklahoma as stronger southwest winds mix warmer temperatures to the surface. Many sheltered/low- lying areas will likely see freezing temperatures even if some stations don't officially reach freezing (e.
Surface observations this afternoon show cold front has pushed southeastward to near Murray, KY. Extensive showers and a few thunderstorms have developed along and ahead of the front, and this rain will spread across the entire area the rest of today into tonight as the cold front pushes through. Highs tomorrow will be 15-20 degrees cooler than we saw today and only reach the upper 50s to low 60s.
Surface analysis this evening places a cold front from Middle Tennessee back through Northwest Tennessee and into East Central and Southern Mississippi. GOES-16 Satellite trends show the back edge of the lower cloud cover near the Mississippi River. When showers trailing behind the cold front pass, skies will start to clear and winds will calm and temperatures will dip down to the upper 30s for most of the area by tomorrow morning, promoting patchy frost for most of eastern Arkansas and western Tennessee.
607 PM MDT Fri Oct 11 2019 The return to milder conditions will commence in earnest today with the trough departing and H5 ridging building across the intermountain west. Southwest surface winds will begin the remove any traces of the previous cold snap, bringing highs back into the 40s and 50s for all but the highest elevations for Saturday.
318 PM MDT Fri Oct 11 2019 Strong winds over the Cheyenne Ridge and northeast plains will begin to subside after sunset this evening. Models have decreasing northwesterly flow aloft for the CWA Saturday night as upper ridging moves in.
530 PM MDT Fri Oct 11 2019 The low pressure system continues to shift toward the Great Lakes region, allowing skies to clear from west to east across the northern plains. Still beneath the upper trough, the region will remain chilly and breezy Saturday.
Western locales already seeing a shift towards westerly flow with the passage of the ridge axis and that trend will continue east as the evening progresses.
An upper level ridge of high pressure will slowly build over the region during the weekend.
953 PM EDT Fri Oct 11 2019 A ridge of high pressure will remain over Central and Eastern Pennsylvania through tonight. A weakening cold front will sweep across the area Saturday afternoon.
746 PM EDT Fri Oct 11 2019 A dry pressure ridge over the region will move east Saturday as a cold front approaches from the west. High level moisture spilling over the ridge will produce some high cloudiness from time to time. Dry high pressure will continue to dominate going into Saturday, and temperatures will warm into the mid to upper 80s. A cold front will then move into the region Saturday night and stall across the Upstate.
940 PM EDT Fri Oct 11 2019 A ridge of high pressure will remain over central Pennsylvania through tonight. A weakening cold front will sweep across the area Saturday afternoon.
725 PM MDT Fri Oct 11 2019 An upper level ridge of high pressure will slowly build over the region during the weekend.
605 PM CDT Fri Oct 11 2019 The main concern over the next 24 hours is with the likelihood for widespread freezing temperatures early Saturday morning. Surface temps look to fall below freezing beginning around midnight across northern Missouri and at or below freezing across central Missouri by 3 am. Temps will then remain at or below freezing until 7 or 8 am Saturday morning. With warm advection trends back in place tomorrow morning, afternoon highs will warm up into the low 60s across the area. Saturday afternoon conditions will be ideal, but gusty, as dew points remain in the low 30s.
Cold front now exiting Acadiana with radar depicting scattered convection along boundary. Temperatures climbed into the lower 80s as rains moved in from the northwest.
213 PM PDT Fri Oct 11 2019 Warming trend continues through the weekend with high pressure moving across the state.
722 PM EDT Fri Oct 11 2019 Shower chances return by morning with the approach and passage of a cold front.
638 PM CDT Fri Oct 11 2019 A deep upper low is currently centered over the eastern Dakotas slowly moving eastward into Minnesota. Saturday will be significantly warmer than today, partially aided by more westerly, downslope winds at the surface. High temperatures should range from the mid 50s to the lower 60s. Saturday night will be similar to the preceding couple nights, just possibly a few degrees warmer, especially in northern Kansas.
With widespread freezing conditions occurring last night in the remaining valleys. The general trend is drier with a much less amplified trough developing across the western CONUS so will have to see if this trend continues.
Clouds will slowly increase at all sites through the night as a cold front approaches.
Temperatures climbed into the lower 80s as rains moved in from the northwest.
540 PM MDT Fri Oct 11 2019 Quiet weather expected across the CWA through the weekend with clear skies and warmer temperatures.
All of the upper level support is well north of the region, so with limited frontogenetic forcing along the advancing cold front, believe that the rain showers will be widely scattered and light in nature. Chattanooga Airport, TN 53 67 49 69 / 20 20 10 20 Knoxville McGhee Tyson Airport, TN 54 63 48 72 / 20 30 20 20 Oak Ridge, TN 51 63 46 72 / 30 40 10 10 Tri Cities Airport, TN 56 62 48 73 / 20 20 20 20.
Cold front currently moving across the mid-state now just east of I-65. A cold front moving through the area will bring showers with MVFR/IFR cigs/vsbys tonight. Conditions will improve to VFR 07Z-12Z as most of the moisture moves east and high pressure starts to move in. Clear skies and decreasing north winds will prevail late in the taf period as the center of high pressure approaches Mid Tn.
Strong winds over the Cheyenne Ridge and northeast plains will begin to subside after sunset this evening. Models have decreasing northwesterly flow aloft for the CWA Saturday night as upper ridging moves in.
/Issued 218 PM PDT Fri Oct 11 2019/ Temperatures will trend warmer through Saturday as high pressure moves across the region.
648 PM EDT Fri Oct 11 2019 A dry pressure ridge over the region will move east Saturday as a cold front approaches from the west. High level moisture spilling over the ridge will produce some high cloudiness from time to time. Dry high pressure will continue to dominate going into Saturday, and temperatures will warm into the mid to upper 80s. A cold front will then move into the region Saturday night and stall across the Upstate.
Models are in good agreement that high pressure will build over the West Coast this weekend helping temperatures to be near normal.
218 PM PDT Fri Oct 11 2019 Temperatures will trend warmer through Saturday as high pressure moves across the region.
637 PM CDT Fri Oct 11 2019 Strong upper level ridging will remain in place across the western US through Saturday night. Despite plenty of sunshine, cold air advection into the region behind the departing low over the upper Great Lakes will keep temperatures on the cooler side. Highs Saturday afternoon will range from the mid 40s in the north to the low 60s south of I-80. Overnight low temperatures will also be chilly with lows in the low to mid 20s tonight. Lows Saturday night will be slightly warmer in the low to upper 20s. High pressure and quiet weather will continue through the remainder of the forecast period.
Ridge will continue to slide southeast overnight prompting southerly winds to return across the northern half of the area by daybreak. Expect good radiational cooling conditions to win out with most locations approaching or falling below the freezing mark. The lower Arkansas river valley may escape a freeze this time as well as some of the higher elevations where early morning mixing occurs.
Current forecast remains on track regarding the snow area rotating around the storm center, with an expansion westward tonight and Saturday morning associated with the TROWAL (trough of warm air aloft) rotating around the low center. This low will swing westward tonight with associated moisture rotating around the low in a counter-clockwise manner. This low will swing northwestward overnight. Models are showing some light freezing rain during this period with the loss of ice aloft.
This low will swing westward tonight with associated moisture rotating around the low in a counter-clockwise manner. This low will swing northwestward overnight. Models are showing some light freezing rain during this period with the loss of ice aloft.
930 PM CDT Fri Oct 11 2019 Rainfall has ended for the night as drier low level air continues to infiltrate our region from the north and west in the wake of a strong cold front which moved through our region earlier today. A strong low level pressure gradient remains in place across our region in the wake of this cold front but rapid decoupling has resulted in mostly light northerly winds across our region this evening with a few locations as of 02z having become calm. It's these areas where the most ideal radiational cooling will take place with temperatures likely falling to near freezing across our extreme NW zones.
The well advertised cold front is currently pushing through western Kentucky and southern Illinois at this hour. Otherwise, tomorrow will be one of the cooler days we have experienced in quite some time in the post-frontal airmass. This flow will have little impact on the temperature with clear skies and near calm surface winds as the region sits under high pressure centered over West Virginia.
CAMs have some drier air getting entrained later tonight as the low pressure system wraps up and the moist conveyer belt gets cut off. Overall, the least impacts have been felt so far from Crookston to Fargo-Moorhead to Wahpeton- Breckenridge-Fergus Falls.
402 AM EDT Sat Oct 12 2019 A ridge of high pressure will remain over Central and Eastern Pennsylvania through tonight. A weakening cold front will sweep across the area Saturday afternoon.
Still, many locations will be at or below freezing at sunrise Saturday.
412 AM EDT Sat Oct 12 2019 The weak cold front that has caused our humid and wet weather over much of our work week has pushed away today. Behind it we will have high pressure and dry air settling in for the weekend.
318 AM EDT Sat Oct 12 2019 Sfc cold front has pushed well into eastern Kentucky but has a classic anafront configuration, so we are still seeing scattered light rain showers east of a line from Frankfort to Green River Lake to Scottsville.
1157 PM EDT Fri Oct 11 2019 Shower chances return by morning with the approach and passage of a cold front.
254 AM CDT Sat Oct 12 2019 Headlines look to be in good shape for now as low pressure located over the northwestern corner of Minnesota is beginning to wrap snow back into the region. The low will meander to the east throughout the day today before finally exiting Minnesota into Ontario late tonight. In addition, the Coteau may also see very light freezing rain overnight tonight.
1053 PM MDT Fri Oct 11 2019 Quiet weather expected across the CWA through the weekend with clear skies and warmer temperatures.
342 AM EDT Sat Oct 12 2019 Mainly morning showers should end today with the passage of a cold front.
339 AM CDT Sat Oct 12 2019 Mostly clear skies and a very cool Canadian air mass have allowed for widespread freezing temperatures this morning. Precipitation- wise, the large upper-level low pressure currently located over northern MN will continue to impact the region. However, warm ground, diffuse sunlight, and temperatures above freezing should minimize the impact on roads. Huron to De Smet to Madison, SD will be an exception, as temperatures around these locales will largely stay below freezing, allowing for another inch or two of accumulation.
Weak high pressure along the spine of the Rockies combined with the deep cyclone over Minnesota is supporting a westerly pressure gradient with enough mixing to keep temperatures more seasonal over the forecast area. For today dry and sunny conditions will prevail with temperatures warmer than previous days. Tonight will again be clear with building heights over the area and the high pressure which had been over the spine of the Rockies spreading a bit east.
249 AM CDT Sat Oct 12 2019 High pressure is now in firm control of the region but is beginning to move off the to the east.
450 AM EDT Sat Oct 12 2019 A ridge of high pressure will remain over Central and Eastern Pennsylvania through tonight. A weakening cold front will sweep across the area Saturday afternoon.
125 AM EDT Sat Oct 12 2019 A dry pressure ridge over the region will move east today as a cold front approaches from the west. Dry high pressure will remain over the forecast area today. A slow moving cold front and associated showers will stay to the west of the forecast area through the day. Weak, warm advection ahead of the cold front and a warming trend in the guidance favors temperatures warmer than model consensus. The cold front should move into the southern Appalachians and SC Upstate overnight.
/issued 930 PM CDT Fri Oct 11 2019/ Rainfall has ended for the night as drier low level air continues to infiltrate our region from the north and west in the wake of a strong cold front which moved through our region earlier today. A strong low level pressure gradient remains in place across our region in the wake of this cold front but rapid decoupling has resulted in mostly light northerly winds across our region this evening with a few locations as of 02z having become calm. It's these areas where the most ideal radiational cooling will take place with temperatures likely falling to near freezing across our extreme NW zones.
As a result most areas are at or just a touch warmer than 24 hours ago. The four county Freeze Warning has some areas that are touching or close to touching the freezing mark, but the south winds should limit the downside.
1155 PM CDT Fri Oct 11 2019 The main concern over the next 24 hours is with the likelihood for widespread freezing temperatures early Saturday morning. Surface temps look to fall below freezing beginning around midnight across northern Missouri and at or below freezing across central Missouri by 3 am. Temps will then remain at or below freezing until 7 or 8 am Saturday morning. With warm advection trends back in place tomorrow morning, afternoon highs will warm up into the low 60s across the area. Saturday afternoon conditions will be ideal, but gusty, as dew points remain in the low 30s.
1259 AM EDT Sat Oct 12 2019 A ridge of high pressure will remain over Central and Eastern Pennsylvania through tonight. A weakening cold front will sweep across the area Saturday afternoon.
1015 PM MDT Fri Oct 11 2019 The return to milder conditions will commence in earnest today with the trough departing and H5 ridging building across the intermountain west. Southwest surface winds will begin the remove any traces of the previous cold snap, bringing highs back into the 40s and 50s for all but the highest elevations for Saturday.
Through the day, a slow moving, closed upper low centered over Minnesota will continue on its easterly track. The trough will become absorbed into the flow of the larger system to the north later in the day. Dry conditions will continue through the weekend as a ridge moves into the forecast area from the west.
Cold front currently moving across the mid-state now just east of I-65.
This combined with warmer temperatures earlier today will keep most places several degrees warmer than the past couple of nights.
Afternoon high temperatures will warm into the low to middle 60s.