Aikyam-Lab/Synoptic-Bench huggingface dataset:
A low pressure system offshore will bring rain chances to the region late tonight into Wednesday. (Today through Wednesday) Low pressure aloft was evident via moisture channel imagery this morning around 500 nm west of the Redwood Coast. A consensus of forecast models suggest this wave will devolve to an open-wave trough while dropping southeast through the Bay Area and Central Coast tonight into Wednesday morning. Given the offshore trajectory of the low-level features the greatest forcing for ascent should remain offshore; however still expect scattered showers to spread inland from west to east from around midnight on Wednesday through the morning hours. High temperatures will undergo a cooling trend given more cloud cover with afternoon temperatures mostly in the lower to mid 60s for the lower elevations.
High pressure brings dry conditions later today into tonight. High pressure will then maintain drier conditions and mostly clear skies across the area through tonight. Temperatures will be brisk throughout the day, with highs projected to range from teens along the higher elevations to 30s in the lowlands. Cold conditions then continue overnight, with lows anticipated to drop into the single digits to teens along the mountains and teens to low 20s in the lowlands.
547 AM CST Tue Nov 28 2023 Another cold day is expected today as a cold front traverses the Mid-South. The weather pattern will turn warmer and more active on Wednesday and persist into the weekend.
Key Messages: -Patchy freezing fog could impact commuters early today.
This return flow from the Gulf will bring slightly warmer temperatures and increased surface moisture.
The ridge axis is moving over the Northern Rockies today. This ridge is allowing for the strengthening of the valleys inversions along with the redevelopment of low clouds over northwest Montana and the valleys around Orofino Idaho.
By tonight, that NW flow will begin to break down ahead of a weak ridge. Look for overnight lows to range in the low-30s north, to upper-30s south. This slow warming trend will continue into tomorrow as well, as the ridge slides off to the east in favor of SW flow aloft. /44/ (Wednesday Night through Tuesday) By Wednesday night, an upper trough will shift eastward into the Four Corners region of the CONUS.
High pressure brings dry conditions later today into tonight. However, low level instability may allow for some convective elements before the upper trof axis passes to the east. High pressure will then maintain drier conditions and mostly clear skies across the area through tonight. Temperatures will be brisk throughout the day, with highs projected to range from teens along the higher elevations to 30s in the lowlands. Cold conditions then continue overnight, with lows anticipated to drop into the single digits to teens along the mountains and teens to low 20s in the lowlands.
452 AM CST Tue Nov 28 2023 (Today) Dry weather will dominate the TN Valley today as high pressure continues to reign throughout the area. High temperatures are forecast to slightly warm into the low to mid 40s under sunny skies. Dew points have been adjusted to the drier side as CAA influences the forecast behind our recent cold front and we are trending lower than NBM model guidance for today-- therefore, we are forecasting minimum RH values of ~30% in portions of the TN Valley this afternoon.
Temperatures are slightly warmer under this cloud layer, but there is still the potential for them to drop to the forecast lows around 8F. The ridge of high pressure will slide across WI during the morning hours and southwest winds will start to increase this afternoon, along with 925mb temps (and therefore our surface temps). Highs should recover to the lower/mid 20s despite increasing mid level clouds. The models (including the GFS ensemble, and to a lesser extend the Euro ensemble) suggest a quick period of cooling in the evening (with lows in the upper teens) before the better low level warm air advection kicks in overnight and warms temps into the lower 20s. The pressure gradient will increase overhead tonight as high pressure gets into the southeast States and low pressure tracks across Ontario so expect steady southwest winds overnight.
High pressure will maintain dry days with chilly mornings through midweek.
335 AM CST Tue Nov 28 2023 Key Messages: -Patchy freezing fog could impact commuters early today.
In the wake of the cold front that pushed yesterday, a cooler and drier air mass continues to move over the local region, with early morning lows expected in the 40s and 50s areawide.
High temperatures will range from the lower to mid-20s north of Interstate 94, and in the mid- to upper 20s for the remainder of the area.
Early this morning, northwest flow aloft persisted across the Northern Plains, with a closed low over the Hudson Bay and a secondary closed low upstream off the coast of California, while ridging was building over the western CONUS into the Rockies. Quiet weather will continue into the morning, with temperatures slowly warming through the night as the warm front advances east. Upper flow turns more zonal on Wednesday as the Hudson Bay low retrogrades back to the northwest, while flow begins to split over the western CONUS as ridging extends into British Columbia and troughing begins digging across California.
Sunshine is unlikely to last long as our next storm system approaches in the form of a deepening trough over the Four Corners on Wednesday. This system will lead to increasing cloud cover through the day on Wednesday, along with cooler temperatures and increasing rain chances by late evening.
446 AM PST Tue Nov 28 2023 Weaker winds today and slightly warmer inland.
Wednesday will be similar to Tuesday in terms of temperatures, if not warmer, as the mild air mass resides over the area.
516 AM CST Tue Nov 28 2023 (Today and tonight) An upper level ridge located over the Four Corners will move eastward through the first 24 hours of the forecast period, ending up overhead late tonight. Increasing heights/thicknesses, abundant sunshine, and southwesterly low level flow point to high temperatures about 6 to 7 degrees warmer than yesterday and closer to the warmer end of MOS guidance. Quiet weather continues into tonight with the ridge moving overhead with NBM low temperatures looking okay at this time.
310 AM MST Tue Nov 28 2023 Quiet and seasonable weather is expected through the week as a series of high pressure systems move through the region. Quiet weather is expected through the middle of this week as upper level ridging to our west keeps dry northwesterly flow entrenched across the area.
343 AM MST Tue Nov 28 2023 Key Messages: - Beautiful day on tap across the region with warmer temperatures expected for the eastern plains. Mostly clear skies across the forecast area this morning has allowed temps to drop into the teens and 20s for most sites, and single digits for the high valleys. The upper ridge, currently located over the Great Basin and Rocky Mt regions, is producing north to northwest flow aloft for Colorado. This ridge is expected to gradually slide east across the state through the next 24 hrs and weaken, producing mostly sunny skies and winds on the lighter side across the forecast area both today and tonight.
Late week and weekend system(s) challenges Confidence Short Term: High Weak ridge of high pressure moving over the area now. A patch of mid level clouds has developed over western Iowa along the ridge axis where the weak warm air advection has commenced and these will continue to move southeast through morning. Tonight will see continued warming with southwest flow aloft keeping mins in the lower to mid 20s over the region.
Along with overnight temperatures at or below freezing, the first widespread frost and freeze event of the season for inland southeast GA, the Suwannee Valley, and the I-10 corridor west of downtown Jacksonville late on Tuesday night and early on Wednesday morning.
After a brief pause in mid-level height rises with the weak wave noted above, low-amplitude ridging will build into the Ohio River Valley by Wednesday.
The upper trough axis has passed overhead and winds aloft are out of the northwest. Temperatures will be reminiscent of the first couple of mornings of this month when lows were in the low to upper 20s for much of Middle Tennessee. Southerly winds on Wednesday will bring warmer temperatures heading into the second half of the work week.
247 AM MST Tue Nov 28 2023 H5 ridging continues to dominate the weather across the state, with most areas seeing warmer temperatures the next couple days. Wednesday night the ridge will get broken down by a trough diving into the Four Corners region. With the ridge broken down, temperatures will return back near normal for the region as a weak cold front sweeps through.
430 AM MST Tue Nov 28 2023 Quiet and seasonable weather is expected through the week as a series of high pressure systems move through the region. Quiet weather is expected through the middle of this week as upper level ridging to our west keeps dry northwesterly flow entrenched across the area.
Another cold day is expected today as a cold front traverses the Mid-South. The weather pattern will turn warmer and more active on Wednesday and persist into the weekend.
207 AM MST Tue Nov 28 2023 Upper ridge currently over the Pacific NW will move east into Montana today with warm and dry weather. This will bring a dry cold front through the forecast area during the day on Wednesday.
104 AM PST Tue Nov 28 2023 Near freezing overnight low temperatures through Wednesday morning.
533 AM CST Tue Nov 28 2023 Key Messages: - Chilly again today with high temperatures ranging from the mid 30s over NE Missouri to the low to mid 40s elsewhere. - Warmer temperatures come tomorrow with highs returning into the mid 40s to mid 50s.
High pressure will remain in place across the region, bringing persistent valley inversions across northern Utah.
505 AM CST Tue Nov 28 2023 (Today through Wednesday afternoon) Clouds this morning are keeping temperatures a bit warmer across the Permian Basin while many other locations have fallen to near freezing.
328 AM MST Tue Nov 28 2023 H5 ridging continues to dominate the weather across the state, with most areas seeing warmer temperatures the next couple days. Wednesday night the ridge will get broken down by a trough diving into the Four Corners region. With the ridge broken down, temperatures will return back near normal for the region as a weak cold front sweeps through.
Today and Wednesday High pressure will strengthen slightly early today as the upper- level high pressure axis moves directly over our area. Thus, expect the inversion conditions to continue, with overall cooler valley temperatures than mountain temperatures. There continues to be patchy freezing fog for most valleys, especially the Magic Valley and Lower Snake Plain along the I-86 corridor. A special weather statement is in place for patchy dense freezing fog along the I-86 corridor from Pocatello to Raft River for this morning. Temperatures will be around 8 to 12 degrees below normal with continued high pressure, overall light winds, and fresh snow. Expect a very gradual warming trend today and tomorrow as the high pressure ridge axis moves east and high pressure weakens slightly.
513 AM CST Tue Nov 28 2023 (Today through Wednesday night) Model agreement continues to see the propagation of a strong 500mb ridge out of Nevada into the Southern Rocky Mountains by tomorrow. Here in the Panhandles, this ridge will aid in keeping dry conditions in places with skies staying relatively clear as well. However, speeds should stay much lighter for both today and tomorrow as the low looks to expand and keep the pressure gradient low.
601 AM EST Tue Nov 28 2023 (Today through Wednesday) The drier and cooler air mass has settled in over the region which will keep conditions stable and dry through Tuesday and Wednesday. Overnight lows Tuesday night will fall into the low to mid 50s for most locations, with exceptions being upper 40s near the Lake and near 60 for the east coast metro.
(Today through Wednesday night) Model agreement continues to see the propagation of a strong 500mb ridge out of Nevada into the Southern Rocky Mountains by tomorrow. Here in the Panhandles, this ridge will aid in keeping dry conditions in places with skies staying relatively clear as well. However, speeds should stay much lighter for both today and tomorrow as the low looks to expand and keep the pressure gradient low.
The ridge axis is moving over the Northern Rockies today. This ridge is allowing for the strengthening of the valley inversions along with the redevelopment of low clouds over northwest Montana and the valleys around Orofino, Idaho.
Temperatures along the Island Chain are near 70 degrees with dew points in the lower 60s. Strong high pressure over the ARK-LA-TEX region and lower pressure over the Caribbean Sea is creating a healthy pressure gradient across the area. The wind profile showed due northerly winds in the lowest levels before backing to westerly above 850 mb indicating cold air advection (CAA). From synopsis, high pressure initially over the southern Plains will shift east across the Southeast United States into the western North Atlantic over the next several days. Fresh north to northeast breezes will shift to the east to southeast and diminish as the high moves into the Atlantic.
Sunny with W winds and highs in the upper 30s/mid 40s Discussion: Northwest flow aloft will sweep a weak warm front quickly followed by a trough of low pressure across the mid and upper MS River Valley region tonight. Temperatures will slip into the upper teens to mid 20s, which will be about 15 to 20 degrees warmer than the single digit and sub-zero lows Tuesday morning. Still under the influence of high pressure, plenty of sunshine will be seen area wide which will also help temperatures climb into the upper 30s to mid 40s.
Quiet and seasonable weather is expected through the week as a series of high pressure systems move through the region. Upper level ridging builds in today for continued dry weather. A surface pressure gradient may bring wind gusts in excess of 30 kts at times along the Rocky Mountain Front and adjacent plains trough this afternoon, mostly impacting KCTB. /ISSUED 310 AM MST Tue Nov 28 2023/ Quiet weather is expected through the middle of this week as upper level ridging to our west keeps dry northwesterly flow entrenched across the area.
The forecast for total snowfall remains in the 1 to 2 inch range with the highest amounts further north where the lake enhancement combines with mid level moisture/WAA.
245 PM CST Tue Nov 28 2023 KEY MESSAGES: * Dry through the short term with above average temperatures Ensembles along with deterministic models agree on a ridge to our west and a trough to the east, continuing to put the Northern Plains in northwest flow aloft. By Wednesday, the ridge breaks down as it moves east with Canadian models/GFS showing zonal flow over the area while NAM/EC keep it more northwest flow.
235 PM CST Tue Nov 28 2023 Key Messages: -Warmer temps today and Wednesday with highs in the 30s to low 40s -Breezy west winds continue overnight and into Wednesday ahead of a cold front Quiet weather prevails through the remainder of the day and into tonight. Given the lack of snow pack and favorable winds, NBM 75th percentile temperatures were used for highs both today and Wednesday as most models are running much cooler than the pattern supports. Cooler air returns to the Northern Plains late Wednesday evening as a cold front brings more seasonal temperatures to the area. Northwest winds will be in the range of 15 to 20 mph through the evening and into the overnight, with lows in the lower 20s.
(This afternoon through Wednesday night) Our weather stays quiet in the short term with quasi-zonal flow aloft and an upper ridge in place over the Rockies/Great Basin. This ridge gradually weakens but slides eastward over the next 24 hours. Increasing cirrus holds tonight's low temperatures a tick warmer than this morning. With clearing cirrus and an uptick in thickness as the upper ridge moves overhead, Wednesday's temperatures return back to near normal- largely in the low to mid 60s.
1006 AM MST Tue Nov 28 2023 H5 ridging continues to dominate the weather across the state, with most areas seeing warmer temperatures the next couple days. Wednesday night the ridge will get broken down by a trough diving into the Four Corners region. With the ridge broken down, temperatures will return back near normal for the region as a weak cold front sweeps through.
1114 AM CST Tue Nov 28 2023 (Today and tonight) An upper level ridge located over the Four Corners will move eastward through the first 24 hours of the forecast period, ending up overhead late tonight. Increasing heights/thicknesses, abundant sunshine, and southwesterly low level flow point to high temperatures about 6 to 7 degrees warmer than yesterday and closer to the warmer end of MOS guidance. Quiet weather continues into tonight with the ridge moving overhead with NBM low temperatures looking okay at this time.
1252 PM MST Tue Nov 28 2023 Short term looks quiet with a bit of wind in spots and a dry cold front early Wednesday.
1039 AM MST Tue Nov 28 2023 Key Messages: - Beautiful day on tap across the region with warmer temperatures expected for the eastern plains. Mostly clear skies across the forecast area this morning has allowed temps to drop into the teens and 20s for most sites, and single digits for the high valleys. The upper ridge, currently located over the Great Basin and Rocky Mt regions, is producing north to northwest flow aloft for Colorado. This ridge is expected to gradually slide east across the state through the next 24 hrs and weaken, producing mostly sunny skies and winds on the lighter side across the forecast area both today and tonight.
Definitely a day to bring a warm jacket if headed outdoors! In addition to breezy winds (up to 20mph), dewpoints will fall into the teens later this afternoon, causing RH values to tank into the lower 30s/upper 20s.
An upper level trough moving across the eastern US today will result in mid and high clouds moving across the area through tonight, but then drier mid/upper levels on Wednesday will result in a mostly sunny day tomorrow. Tonight will be a bit tricky with the temp forecast due to the mid/upper clouds, but still went on the lower end of guidance especially over interior SW FL where there is a higher confidence of clearing in the pre-dawn hours. Overnight lows will range from the low to mid 40s over interior SW FL, to around 60 over SE FL. The cooler air will remain in place for at least one more day on Wednesday, with below normal afternoon high temps in the 70s.
This high will continue shifting east and become centered over our CWA tonight before shifting east of Mississippi Wednesday. This will lead to rather cool night as most sites bottom out at or below freezing.
Temperatures along the Island Chain are in the mid 70s with dew points in the lower 60s. Along the Island Chain, the Middle and Upper Keys are observing north to northeast 10 to 15 mph with the Lower Keys near 15 mph. The only caveat will be elevated breezes over the next few days as the high slides across the remainder of the Southeastern United States and moves into the western North Atlantic late week through the weekend.
Warmer temperatures likely on Wednesday (Highs in the 50s to near 60).
Indeed, we are expecting freezing temperatures for parts of the Nature Coast and mainly 40s elsewhere and a Freeze Warning is in place for Inland Levy county.
1148 AM EST Tue Nov 28 2023 High pressure brings dry conditions later today into tonight.
907 AM MST Tue Nov 28 2023 Quiet and seasonable weather is expected through the week as a series of high pressure systems move through the region. Upper level ridging builds in today for continued dry weather. - RCG 430 PM MST Tue Nov 28 2023 (28/12Z TAF Period) VFR conditions are expected over the next 24 hours as an upper level ridge moves over the area. /ISSUED 310 AM MST Tue Nov 28 2023/ Quiet weather is expected through the middle of this week as upper level ridging to our west keeps dry northwesterly flow entrenched across the area.
/24/ (Wednesday Night through Tuesday) By Wednesday night, an upper trough will shift eastward into the Four Corners region of the CONUS.
Pattern Synopsis/Forecast: Mid level heights steadily on the rebound early this afternoon as core of trough axis pivots off to our northeast. Details: Expect ongoing lake snows to continue to diminish the remainder of this afternoon as ridging build further overhead.
This should allow for another cool night, albeit several degrees warmer than what we have seen the last few days, with lows in the upper 20s to mid 30s. High temperatures will pop into the low 60s.
However, upper level ridging to our west will shift east toward our area today, putting us under weak ridging aloft on Wednesday. This will cause weak subsidence over our area, limiting rain potential until the ridging can shift off to the east and a short wave can approach late Wednesday.
Ample low-level moisture trapped under the building ridge has resulted in some dense fog with cities such as Craig and Meeker seeing visibilities of a quarter mile or less in the last couple of hours. Elsewhere in the forecast area, unseasonably cool and benign weather will prevail today as the transitory ridge settles across the Western Slope. The ridge will quickly slide east of the Divide this evening and overnight as an area of low pressure approaches the coast of west-central California. The low will transition to an open wave as it drops into the Great Basin Wednesday afternoon.
Afternoon highs will actually be a few degrees cooler than yesterday, albeit with less wind. And overnight lows will be mostly in the 20s, with some teens in the cooler spots. High pressure will slide off to the east by tomorrow, bringing us a quick warm-up ahead of the next active weather system.
A few locales across far northern Oklahoma, namely Grant and Harper counties, are running a few degrees cooler today (Tuesday) than surrounding areas owing to lingering snowpack.
Temps are running slightly warmer and wind gusts have increased slightly quicker than expected, especially for the Red River Valley and westward. Wednesday will be similar to Tuesday in terms of temperatures, if not warmer, as the mild air mass resides over the area.
1110 AM CST Tue Nov 28 2023 Another cold day is expected today as a cold front traverses the Mid-South. The weather pattern will turn warmer and more active on Wednesday and persist into the weekend.
The middle of the week will remain mostly dry with temperatures trending warmer.
1212 PM CST Tue Nov 28 2023 (Today through Wednesday night) Model agreement continues to see the propagation of a strong 500mb ridge out of Nevada into the Southern Rocky Mountains by tomorrow. Here in the Panhandles, this ridge will aid in keeping dry conditions in places with skies staying relatively clear as well. However, speeds should stay much lighter for both today and tomorrow as the low looks to expand and keep the pressure gradient low.
936 AM PST Tue Nov 28 2023 Weaker winds today and slightly warmer inland.
/NEW/ /Through Wednesday/ A fairly tranquil mid-week will continue as high pressure dominates across the region.
A surface warm front is located near the border of the Dakotas and Minnesota early this afternoon. Locations across western Minnesota have warmed above the freezing mark, with highs on track to finish in the upper 30s to even the low 40s along the Buffalo Ridge. Temperatures will run significantly cooler east of the front, with sub-freezing high temperatures in the 20s and low 30s at best for eastern Minnesota and western Wisconsin. It will not be nearly as cold tonight, with lows in the lower 20s for most locations. Temperatures will not only climb back above freezing, but are projected to finish above normal at our climate sites. High temperatures will run a few degrees cooler, in the upper 30s, across western Wisconsin.