Aikyam-Lab/Synoptic-Bench huggingface dataset:
The stationary front will remain south of the area, while a secondary cold front translates equatorward tonight.
However, an upper level low currently across Arizona is forecast to dig southeast into Mexico tonight and then open and move east through the Big Bend and into South-Central Texas on Monday. Slightly warmer tomorrow, into the low to mid 70s for most areas as a weak east to southeast low level flow resumes.
253 PM CDT Sun Apr 18 2021 The key messages of the short term forecast center around the strong cold front that will through the region this evening. For us, we'll be warmer to start, and the precipitation should focus more across Lake Superior, so we shouldn't see the intensity and therefore expect mainly rain showers.
254 PM CDT Sun Apr 18 2021 Cold front remain in the northern Gulf of Mexico with a few light sprinkles traversing the area, but nothing measurable is expected this evening or tonight.
209 PM MDT Sun Apr 18 2021 A vigorous cold front will move south across the Northern Rockies this afternoon and evening, bringing a blast of cold air and high- elevation snow across the Continental Divide.
831 PM EDT Sun Apr 18 2021 Rain will gradually end from northwest to southeast across our Big Bend zones as a weak cold front pushes through overnight. The stationary front will remain south of the area, while a secondary cold front translates equatorward tonight.
/issued 254 PM CDT Sun Apr 18 2021/ Cold front remain in the northern Gulf of Mexico with a few light sprinkles traversing the area, but nothing measurable is expected this evening or tonight.
Temperatures across the area are falling along the forecast diurnal curve and guidance remains tightly clustered, allowing overnight lows to drop into the lower 40s. This has resulted in dry weather but continued north winds, and some cooler temperatures. These have been warmer than yesterday thanks to the influence of sunshine as readings have reached into the mid to upper 60s and some lower 70s across the region. Another nice day expected tomorrow with no precipitation expected and highs in the lower 70s.
Cold front from western Canada has already reached the Idaho panhandle. The front is moving south supported by a well-defined short wave trough aloft. Isolated higher peaks obscured prior to sunrise due to a cold front, with a few light showers north and east of KMYL.
Northwest winds to diminish overnight as high pressure moves over the region. Modifying high pressure atop the area tomorrow will make for high temperatures close to average for the date, although some periodic clouds in southern zones could keep readings slightly cooler than otherwise might be the case under full sunshine. Anticipate light winds and highs ranging from the low to mid 70s.
246 PM PDT Sun Apr 18 2021 Dry and warm spring conditions continue into Monday as high pressure moves east.
Highs might not reach 40 for some Monday with freezing temps for lows expected into Thu morning. While models continue to be at odds in strength, positioning and timing, there is some agreement that later Fri into Sat could see some chances as ridges slides east and ripples in the flow work in. VFR conditions will deteriorate to MVFR as a strong cold front moves into the region this evening.
328 PM MDT Sun Apr 18 2021 Cold front continues to track southward across Montana currently, and should be entering northern Wyoming around 6pm. Most lower elevations east of the divide will see some snowfall, but warmer ground temperatures will help travel conditions. With the front exiting southward quickly on Monday, most areas of snow will be ending, except for the highest elevations of the Winds and Bighorns Monday evening.
At the surface, a ridge centered over West-Central Texas will slide east into North and Central Texas tonight.
High pressure aloft has shifted inland over the coast from the eastern Pacific today, prompting the thermal trough to prevail inland with coastal stratus hugging the beaches.
/issued 337 PM CDT Sun Apr 18 2021/ Latest GOES East Low Level Water Vapor Imagery shows a positively-tilted trough digging across Missouri and Arkansas at this hour.
755 PM EDT Sun Apr 18 2021 A weak wave of low pressure will bring a few early morning showers to the area.
The marine layer should lower to the surface again tonight despite the high clouds spilling into the region. The high clouds will continue to move onshore, but the front will begin to lag as it gets closer, slowing the amount of mid-level clouds moving in.
737 PM EDT Sun Apr 18 2021 High pressure will bring partly sunny skies and milder temperatures to NY and PA over the next few days. High pressure will bring a fair amount of sunshine through late Monday. Any thunderstorm which develops could produce small hail due to the low 0C level.
As an upper level ridge remains in place, dry conditions will persist although systems passing near the area will allow for an increase in clouds over the first half of the week. A pattern change is still expected for the end of the week with a return to cooler and wetter conditions.
248 PM PDT Sun Apr 18 2021 Dry and warm spring conditions continue into Monday as high pressure moves east.
902 PM CDT Sun Apr 18 2021 The cold front that passed through this afternoon is long gone, allowing cold air advection in its wake. Winds are still strong behind the front, and will remain on the high side overnight. As temperatures fall below freezing late tonight, the rain looks to turn over to snow, with some light accumulations possible, mainly along and south of the Interstate 90 corridor. Lows Monday night will be in the lower to mid 20s.
While winds will not be calm everywhere tonight, wind speeds are expected to decrease sufficiently so that underneath clearing skies, radiational cooling will drop temperatures into the low to mid 40s.
The key messages of the short term forecast center around the strong cold front that will through the region this evening. For us, we'll be warmer to start, and the precipitation should focus more across Lake Superior, so we shouldn't see the intensity and therefore expect mainly rain showers.
Dry conditions continue through Monday, but winds pick up during the day from an elongated trough clipping our region.
Otherwise, the previous fcst looked pretty good with sky cover increasing as well yielding slightly warmer overnight lows than nights past. CDG Chattanooga Airport, TN 48 72 47 75 45 / 10 0 0 10 10 Knoxville McGhee Tyson Airport, TN 48 68 45 73 45 / 40 10 0 10 20 Oak Ridge, TN 47 69 46 72 44 / 40 10 0 10 30 Tri Cities Airport, TN 44 65 39 71 43 / 20 20 0 10 20.
759 PM EDT Sun Apr 18 2021 A dry and warmer Monday will follow this evenings scattered rain showers.
255 AM CDT Mon Apr 19 2021 A cold front will push south across the area today.
The front is well to the southeast of our coastal waters, with high pressure centered over Texas this morning. Low pressure over Lake Superior this morning has a cold front southwest to Colorado.
412 AM EDT Mon Apr 19 2021 An upper trough will cross the OH Valley this morning and into the early afternoon. In the wake of this trough. An upper ridge will build over the forecast area through tonight.
235 AM MDT Mon Apr 19 2021 Anomalously deep/cold upper trough is digging into the central CONUS, with FGEN snow ongoing across the FA. This will support much warmer conds Wed and esp Thur.
312 AM CDT Mon Apr 19 2021 Latest 08z surface analysis shows cold front extending from Lake Superior to central Iowa. This cold front was producing a band of rain showers from eastern Wisconsin into northern Iowa per latest mosaic radar. Behind cold front temperatures have fallen into the middle 30s to lower 40s across the forecast area per latest metars. Surface cold front tracks south of the forecast area today and an unseasonably cold airmass will advect into the region. upper level low is expected to track into the southern Ontario Canada/Upper Great Lakes region. First impulse rotating around the upper level low will move over the forecast area this afternoon/evening.
Later this morning through today, a broad trough will swing through the area bringing more cloud cover to the area and perhaps scattered light rain and snow. Dry air in the lower atmosphere may limited these precipitation chances, although mostly left slight chances in for today mainly in the west and some central portions. Another weak wave in a broad trough pattern looks to move through tonight bringing more chances for scattered light snow.
A few flurries are also possible out of the lower clouds, although widespread impacts are not expected. Precipitation behind a cold front has ended late this evening. This evening, a low level baroclinic zone will be draped from central Montana through southwest North Dakota into northern South Dakota, sloped up in the atmosphere behind a surface cold front which is now well into South Dakota.
However, the presence of some mid/high clouds spilling in from the west may keep Central Texas a few degrees cooler than North Texas as this cloud cover filters the sunlight during peak heating.
(Today and tonight) An upper level low/trough is centered across northern Mexico and will track across far West Texas today, then across West Central Texas overnight. Overnight low temperatures will be in the low to mid 40s. A strong cold front will approach the northern Big Country around daybreak, resulting in gusty north winds of 15 to 20 mph.
A deepening upper level trough will then swing across the area by Wed. A dying cold front will push into the northwest mountains tonight, bringing the chance of a few showers up there.
The well-advertised and much-anticipated cold front has moved southward over most of Iowa overnight, currently located in southern Iowa and expected to clear into northern Missouri in a few hours.
A trough will graze northern Utah with a few mountain showers Monday, while an associated cold front will bring gusty winds. An anticyclonic north to northwesterly flow aloft remains in place over Utah this evening, ahead of a ridge centered over the West Coast. The aforementioned trough will push a cold front into Utah tomorrow, beginning across northern Utah during the first half of the afternoon and quickly moving into southern Utah for the evening hours. Even so, pressure rises behind the cold front will be enough to bring breezy to windy conditions to much of Utah. Precipitation near the cold front will mostly be limited to the northern Utah mountains and adjacent valleys as well as southwest Wyoming.
A cold front associated with the upper Midwest wave extended from the western Great Lakes to about southwest NE.
357 AM CDT Mon Apr 19 2021 Extensive cloud cover in cyclonic flow will be the main story today, along with much cooler temperatures.
Occasional middeck cigs will persist early today with high pressure on the exit.
VFR cigs with VCSH will affect all airports this evening into the early morning hours as a weak cold front moves across the area.
Highs might not reach 40 for some Monday with freezing temps for lows expected into Thu morning. While models continue to be at odds in strength, positioning and timing, there is some agreement that later Fri into Sat could see some chances as ridges slides east and ripples in the flow work in. A strong cold front came through during the evening with light rain, gusty northwest winds, and MVFR ceilings overspreading the area.
1117 PM CDT Sun Apr 18 2021 A strong cold front will move into central Illinois on Monday.
Otherwise, the previous fcst looked pretty good with sky cover increasing as well yielding slightly warmer overnight lows than nights past. Chattanooga Airport, TN 72 47 75 45 58 / 10 0 10 10 10 Knoxville McGhee Tyson Airport, TN 68 45 73 45 54 / 10 0 10 20 10 Oak Ridge, TN 69 46 72 44 54 / 10 0 10 30 10 Tri Cities Airport, TN 65 39 71 43 53 / 20 0 10 20 30.
The cold front that passed through this afternoon is long gone, allowing cold air advection in its wake. Winds are still strong behind the front, and will remain on the high side overnight. As temperatures fall below freezing late tonight, the rain looks to turn over to snow, with some light accumulations possible, mainly along and south of the Interstate 90 corridor. Lows Monday night will be in the lower to mid 20s.
Cold front will move into NE OK after 00z, likely reaching KBVO around 03z and KTUL/KRVS at the very end of this forecast, with winds becoming northerly.
By tonight, clouds will be on the increase ahead of an approaching trough.
353 AM EDT Mon Apr 19 2021 Dry and warmer weather expected until rain, snow, and much cooler temperatures return midweek with crossing low pressure.
253 AM CDT Mon Apr 19 2021 A fast-moving/strong cold front was currently pushing into southern NE and will be across southern KS later today.
1012 PM CDT Sun Apr 18 2021 Precipitation behind a cold front has ended late this evening. This evening, a low level baroclinic zone will be draped from central Montana through southwest North Dakota into northern South Dakota, sloped up in the atmosphere behind a surface cold front which is now well into South Dakota.
Temperatures range from the mid to upper 40s north of I-10 with mostly clear skies and calm winds to the lower/mid 50s along the I-10 corridor of SE TX/S LA. Clouds expected to thin out a bit more, leaving mostly sunny skies for today and highs in the lower 70s expected.
A cold front, now along the Kansas/Nebraska border, will move south today and tonight, entering northwest Oklahoma early this evening.
A much stronger short wave will be rotating around a larger trough centered over Ontario.
In general, another couple inches of snow will still occur early this morning across the lower elevations, with another 3-6 inches possible in the foothills.
951 PM PDT Sun Apr 18 2021 A robust cold front will push into and across the Inland Northwest this afternoon and into tonight. Much cooler temperatures will move in behind the front for Monday.
Weak high pressure will prevail with plenty of sunshine today and warmer temps nearing 70F or so.
An upper level low currently along the Arizona/U. Right on the heels of the upper low will be an upper trough dropping due south out of Canada and bringing another cold front Tuesday morning. Temperatures behind the front may briefly reach near freezing in northern Lea County Tuesday morning, but clearing skies and lighter winds Tuesday night will bring colder temperatures and a more widespread late season freeze for portions of southeastern New Mexico and the northern Permian Basin.
This setup will try to wring out scattered showers during the overnight hours, but these showers will encounter a significant layer of dry air in the low to mid levels, which will make measurable precip unlikely. High pressure begins to build in from the Plains going into mid week, bringing in cooler air to the region. Weakly southwesterly flow aloft alters slowly to slightly northwesterly as a trough passes well to the north, transitioning the pattern over the southeast to more zonal through the end of the week. 850 mb temps drop considerably with the trough from 9C Tuesday afternoon to 3C in less than 24 hrs.
Considerable cloud cover and high rain chances will keep temperatures close to seasonal norms today with highs topping out in the mid to upper 70s north, and around 80 to the lower 80s central and south. Areas of showers and embedded thunderstorms associated with a frontal boundary across the central Florida peninsula will support intervals of MVFR/IFR cigs/vsbys at all of the terminals through the Taf forecast period and have handled with VCTS with short tempo groups for the lower cigs/vsbys.
A series of weak troughs and lows will move across the Pacific Northwest, digging southeast into California and Nevada. (Temperatures will largely still be warmer than normal, however.
Yesterday and last night a cold front swept across the region, and we'll feel the difference today. Highs will be 20 to 25 degrees cooler today than yesterday. Behind the front, a weak ridge is building into place for the next few days.
544 AM CDT Mon Apr 19 2021 A cold front will push south across the area today.
A strong cold front will surge southward across central Kansas this morning, with southern Kansas witnessing warmer daytime highs before the colder air arrives this afternoon. The sun will come out pretty quickly in the wake of this system, and with the higher sun angle any snow would melt rapidly Tuesday afternoon.
Wind directions may turn a bit more to the south before a strong cold front moves through around 07-09Z. A much stronger short wave will be rotating around a larger trough centered over Ontario. The most notable impact in the near term will be a strong cold front quickly advancing through the region during the pre-dawn hours on Tuesday morning. Freezing temperatures are most likely around the extreme southwestern Texas Panhandle into the northwestern South Plains with additional chances on the caprock. This front will bring a cooler airmass back to the region keeping temperatures in the 50's.
626 AM CDT Mon Apr 19 2021 Summary: Much cooler temperatures expected today in the wake of the cold front that went through yesterday. Look for highs in the lower 40s.
649 AM EDT Mon Apr 19 2021 Dry and seasonal conditions will remain over the area today with a weak low pressure system moving south of the area Tuesday.
520 AM MDT Mon Apr 19 2021 Anomalously deep/cold upper trough is digging into the central CONUS, with FGEN snow ongoing across the FA. This will support much warmer conds Wed and esp Thur.
Tonight a cold front will move in from the north, reaching the Ohio River by sunrise Tuesday. With the dry air in place and weak surface ridging to our south blocking the Gulf, no precipitation and little in the way cloudiness is expected. Low temperatures will be in the low to mid 40s, just a few degrees below normal.
A cold front was rolling south through the central Plains and had crossed into far northern Kansas as of 08z. Ahead of the front low level southwesterly downslope flow will help warm temperatures up into the lower 70s in areas along and just north of the Oklahoma border before the front moves through later this afternoon. In between, along the Highway 50 corridor, highs may reach the 65-70 range depending on how soon the front moves through. Have converted the Freeze Watch for tonight into a Freeze Warning as well as continued the Winter Weather Advisory that also highlights the freezing temperatures. High temperatures will be much cooler in the 40s.
248 AM PDT Mon Apr 19 2021 Much cooler temperatures will settle in across the Inland Northwest to start the week.
With convective temps in the low to mid 30s skies will CU up this morning with a scattered to broken afternoon expected.
A weak inverted trough may develop later today helping to increase cloud cover, as well as create some lower end rain chances along and near the coast. Skies will clear up a bit more farther inland away from the coastal trough, allowing for temperatures to rise into the upper 70s and lower 80s out west. Highs in the lower to middle 70s will occur across eastern areas owing to persistent cloud cover. Easterly onshore flow will set back in on Tuesday as high pressure settles in over the northwestern Gulf. Nearly-zonal flow aloft will usher in drier air, with clearing skies allowing for temperatures to range from the lower to middle 80s near the coast to lower 90s in portions of Starr and Zapata counties.
1015 AM EDT Mon Apr 19 2021 A dying cold front will push into northwest Pennsylvania tonight, then stall out over the northern part of the state on Tuesday.
705 AM EDT Mon Apr 19 2021 An upper level disturbance will cross the Mid-Atlantic Region this morning, followed by high pressure for Tuesday.
Be aware though, cold air will return as a strong cold front swings through Tuesday night.
514 AM EDT Mon Apr 19 2021 Dry and warmer weather expected until rain, snow, and much cooler temperatures return midweek with crossing low pressure.
614 AM CDT Mon Apr 19 2021 (Today and tonight) An upper level low/trough is centered across northern Mexico and will track across far West Texas today, then across West Central Texas overnight. Overnight low temperatures will be in the low to mid 40s. A strong cold front will approach the northern Big Country around daybreak, resulting in gusty north winds of 15 to 20 mph.
Interior locations will remain sunny and warm, although slightly cooler than in recent days. Extensive marine stratus and patchy fog are once again present along much of the West Coast this morning as the upper level ridge axis remains directly overhead.
and Tuesday A cold front was moving through eastern WI early this morning. Expect abundant cloud cover to linger over the forecast area today, as an upper level trough remains over the western Great Lakes. Significantly cooler conditions are anticipated, with highs in the middle 30s to middle 40s.
638 AM CDT Mon Apr 19 2021 Extensive cloud cover in cyclonic flow will be the main story today, along with much cooler temperatures. Despite temperatures in the low to mid 40s, wet bulb temperatures will remain below freezing throughout the column due to inverted V/very dry profiles in the boundary layer. The deep circulation around the upper trough diving southward over the next couple of days, will lead to steep lapse rates which will cause these rain/snow showers. Once the mean trough moves east of our region will temperatures begin to moderate late this week. The week of April 26th looks more unsettled due to the transition to the stronger zonal flow, and possibly a more active pattern as a long wave trough begins to develop across the Rockies, and into the Plains.
658 AM CDT Mon Apr 19 2021 A strong cold front pushed south across the local area overnight. This front has brought occasionally gusty northerly winds along with noticably cooler temperatures. with most locations reporting wind chills this morning in the lower to mid 20s.
740 AM EDT Mon Apr 19 2021 An upper trough will cross the OH Valley this morning and into the early afternoon. In the wake of this trough. An upper ridge will build over the forecast area through tonight. The upper flow will become more west to southwest on Tuesday as a low pressure area moves along the Gulf.
1055 AM EDT Mon Apr 19 2021 Mean layer ridging is displaced well to the southeast of the Florida Keys, with deep subtropical subsidence well to the east- southeast of the Greater Antilles.
Anomalously deep/cold upper trough is digging into the central CONUS, with FGEN snow ongoing across the FA. This will support much warmer conds Wed and esp Thur.
Cyclonic flow around an upper-lvl trough and some mid-lvl energy will still be in place at the beginning of the period to force a hold onto some slight chc pops Tuesday evening.
Just outside of the TAF period is the arrival of another cold front. An upper low is opening up across the Desert Southwest as it moves eastward towards the Big Bend area this afternoon. With the lower levels still pretty dry, most of these showers may manifest as only virga, and not providing any drought busting rain. By Tomorrow, another upper trough digs into the Southern Plains and drag the associated cold front into the area Tuesday afternoon into the evening.
By tonight, clouds will be on the increase ahead of an approaching trough. However, as colder air continues to dig southward, a rain/snow mix is expected, especially across areas along and north of the Highway 54 corridor. However, areas along and north of the Highway 54 corridor may overcome these factors at times. By Tuesday night, skies will clear as high pressure builds into the region.
441 AM CDT Mon Apr 19 2021 A strong cold front pushed south across the local area overnight. This front has brought occasionally gusty northerly winds along with noticably cooler temperatures. with most locations reporting wind chills this morning in the lower to mid 20s.