Aikyam-Lab/Synoptic-Bench huggingface dataset:
357 AM MST Mon Dec 9 2024 - An incoming cold front will bring snow to the area starting this morning and lasting into tonight. Today, a broad upper-level trough will make its way into Colorado, bringing some more active weather to our area. By late morning, a cold front will start to move in from the north over the eastern plains. Snow will begin over the Palmer Divide prior to midday, quickly spreading to the rest of the Pikes Peak Region and moving further south as the cold front progresses through the area. The remainder of the higher terrain, mountain valleys, and the rest of I-25 and some areas just east of it will get lesser amounts, about 1-2 inches with locally higher amounts possible along the mountains/plains interface.
- A blustery start to the week with significantly cooler temperatures (40s) along with northwesterly wind gusts of 40-45 MPH possible this afternoon (focused on areas north of I-80).
353 AM MST Mon Dec 9 2024 - Cooler today with a gusty wind in some areas along with a scattering of snow showers.
Cold, below normal temperatures start with the passing of a cold front early Tuesday morning and will last for the whole day.
529 AM CST Mon Dec 9 2024 - Cold front today will lead to much more seasonal temperatures with north winds 20 to 30 mph. - Temperatures will remain around Climo for much of the week with highs generally 40s to lower 50s and lows in the lower to mid 20s. A Dense Fog Advisory will remain in effect through 9 AM CST, which is around the time that our next cold front will be gaining some forward progress, ushering in lower dewpoints. A positive-tilted large scale trough axis will swing through the Central Plains today and tonight without much fanfare as far as sensible weather is concerned for southwest Kansas, other than the aforementioned bump in north winds.
625 AM CST Mon Dec 9 2024 - A strong cold front will move through the area this afternoon and evening bringing much cooler temperatures for Tuesday. - Below freezing temperatures are expected Tuesday night. (Today and tonight) Today will be another very warm day by December standards, but changes are on the way in the form of a strong cold front. Cannot rule out some patchy drizzle developing overnight behind the front as the low levels saturate per model forecast soundings.
457 AM CST Mon Dec 9 2024 Updated at 438 AM CST Mon Dec 9 2024 - A strong cold front moves through the region tonight into early Tuesday bringing colder temperatures for the middle of the coming week.
145 AM PST Mon Dec 9 2024 Breezy to gusty northerly winds today, along with slightly cooler high temperatures. The upper level trough that is responsible for the breezier northerly winds today is moving off into the northern Great Plains this morning, and a ridge is developing offshore. A fairly prominent ridge axis is extending into the Gulf of Alaska, with a trough axis extending from North Dakota into Idaho has orientated our upper level heights into a north-to-south direction, which will once again setup periods of gusty northerly winds across NorCal today. Upper level ridging will continue to dominate the synoptic pattern through the short-term forecast period, resulting in mostly dry weather and near to slightly above normal high temperatures.
A cold front is expected to move into the area on Tuesday, bringing additional rain.
525 AM CST Mon Dec 9 2024 Updated at 500 AM CST Mon Dec 9 2024 - Widespread dense fog this morning - Cooler temperatures Tuesday behind a cold front.
- Warmer conditions for today and Monday. - Cold front will bring the potential for below freezing temperatures Tuesday night. (This evening through Monday) The upper low, which provided rain chances the past 2 days, is currently moving off to the east, allowing for much drier and warmer conditions today. Dry air is being brought in on the backside of the low, leading to mostly clear skies this afternoon. The exception to the west winds will be in the Big Country, where winds will turn more north/northwest as a cold front moves into West Central Texas. The cold front is expected to move into the northern Big Country in the early afternoon and push south as we go into the evening.
Updated at 417 AM CST Mon Dec 9 2024 - A strong cold front moves through the region tonight into early Tuesday bringing colder temperatures for the middle of the coming week.
429 AM EST Mon Dec 9 2024 Rain is expected today with a crossing warm front. A chance of light rain will continue tonight, before additional rain occurs on Tuesday with a cold front.
Showers will redevelop tonight and continue into Tuesday as low pressure moves through the region.
A low pressure system will bring more seasonal temperatures and elevated northerly winds to the region on today and tomorrow. A low pressure system will swing through eastern Utah/southwestern Nevada today, bringing elevated northerly winds and more seasonal temperatures to the region today and tomorrow. Elsewhere wind gusts will top out in the 20 to 35 mph range, with gusts up to 40 mph in the higher terrain of the Mojave Preserve and Cadiz Basin during the overnight hours. Winds will gradually decrease throughout the day on Tuesday as the low pressure system exits the region and the north-south pressure gradient relaxes. In addition to elevated north winds, this system will also bring cooler temperatures, knocking temperatures down to more seasonal values.
546 AM CST Mon Dec 9 2024 - A blustery start to the week with significantly cooler temperatures (40s) along with northwesterly wind gusts of 40-45 MPH possible this afternoon (focused on areas north of I-80).
126 AM PST Mon Dec 9 2024 * Dry and chilly weather prevails today through Tuesday, with a period of gusty ridge top winds through this evening.
- A strong cold front will move through the area this afternoon and evening bringing much cooler temperatures for Tuesday. - Below freezing temperatures are expected Tuesday night. (Today and tonight) Today will be another very warm day by December standards, but changes are on the way in the form of a strong cold front. Cannot rule out some patchy drizzle developing overnight behind the front as the low levels saturate per model forecast soundings.
357 AM CST Mon Dec 9 2024 - A blustery start to the week with significantly cooler temperatures (40s) along with northwesterly wind gusts of 40-45 MPH possible this afternoon (focused on areas north of I-80).
513 AM CST Mon Dec 9 2024 - Mild and dry today ahead of a cold front later this evening.
The forecast remains unsettled in the near term, closer to and in this rain band with cigs varying from MVFR to IFR categories as well as varying vsbys, the lower restrictions being with the passage of RA/+RA. Some indications in the guidance that coverage of precipitation lowers a bit by late evening before trending back up by daybreak and into the day Tuesday as upper trough begins to sharpen over the Plains down into TX causing upper level support/ascent to increase along a southeastward moving cold front. Temperatures will be mild and well above normal by December standards with highs Tuesday in the lower to mid 70s interior to mid 70s coast. Lows will also be mild and well above normal tonight in the lower to mid 60s interior to mid 60s coast.
On Tuesday hi-res models focus on the Lower Treasure Valley for the most persistent fog.
Composite tropospheric satellite and observation analysis reveals continued ridging aloft across the Florida Peninsula, as upper- level anticyclone remains firmly planted over the western Caribbean and much of the Gulf of Mexico. At the surface, high pressure that has promoted the moderate to at times fresh northeast to east breezes across the Keys continues to weaken and slide eastward into the central North Atlantic. The 12z morning sounding at KEY is consistent with this analysis, with falling geopotential heights in the low-levels, and quasisteady heights aloft. High pressure over the western North Atlantic will move further offshore through Tuesday, with moderate breezes gradually veering to the east and southeast across the Keys coastal waters.
251 PM EST Mon Dec 9 2024 High pressure aloft is centered south of the state, with a nearly zonal flow in place across the region. At the surface, the Atlantic ridge axis extends over north Florida, keeping a southerly flow over the local area. This overall pattern remains in place through tomorrow and, after a warmer day today, we will see highs for tomorrow in the lower to mid 80s away from the immediate coast.
- A strong cold front will move through the area this afternoon and evening bringing much cooler temperatures for Tuesday. - Below freezing temperatures are expected Tuesday night. (This evening through Tuesday) A cold front tracking southward through West Central Texas this afternoon and evening will bring cooler and drier northerly flow across the area through Tuesday. Overnight lows tonight will range from the mid 30s to lower 40s, with the coldest temperatures expected across the Big Country and potentially the typical low-lying areas experiencing temperatures nearing the freezing mark.
1101 AM MST Mon Dec 9 2024 - An incoming cold front will bring snow to the area starting this morning and lasting into tonight. Today, a broad upper-level trough will make its way into Colorado, bringing some more active weather to our area. By late morning, a cold front will start to move in from the north over the eastern plains. Snow will begin over the Palmer Divide prior to midday, quickly spreading to the rest of the Pikes Peak Region and moving further south as the cold front progresses through the area. The remainder of the higher terrain, mountain valleys, and the rest of I-25 and some areas just east of it will get lesser amounts, about 1-2 inches with locally higher amounts possible along the mountains/plains interface.
Updated at 221 PM CST Mon Dec 9 2024 - Cooler temperatures Tuesday behind a cold front.
1202 PM CST Mon Dec 9 2024 - Cold front today will lead to much more seasonal temperatures with north winds 20 to 30 mph. - Temperatures will remain around Climo for much of the week with highs generally 40s to lower 50s and lows in the lower to mid 20s. A Dense Fog Advisory will remain in effect through 9 AM CST, which is around the time that our next cold front will be gaining some forward progress, ushering in lower dewpoints. A positive-tilted large scale trough axis will swing through the Central Plains today and tonight without much fanfare as far as sensible weather is concerned for southwest Kansas, other than the aforementioned bump in north winds.
Updated at 128 PM CST Mon Dec 9 2024 - A strong cold front moves through the region tonight into early Tuesday, bringing colder temperatures for the middle of the coming week.
311 PM EST Mon Dec 9 2024 A warm front will lift north of Pennsylvania through this evening.
Confidence remains quite high that a mid- latitude upper- level trough will dig southward towards the Gulf States over the next several days, then will pivot northeastward towards New England.
A strong cold front will move through the state on Tuesday resulting in temperatures dropping during the day and breezy northwest winds again.
1143 AM CST Mon Dec 9 2024 Updated at 1142 AM CST Mon Dec 9 2024 - A strong cold front moves through the region tonight into early Tuesday bringing colder temperatures for the middle of the coming week.
This low QPF event could produce anywhere from a dusting to a half inch or more of snow.
Highs are on their way into the low to mid 60s. Southerly winds on the eastern side of this system will keep temperatures on the warm side, but as that low passes overhead between Tuesday morning, winds will turn out of the north and cooler air will move in.
As far as temperatures tonight are concerned, expect a wide range from NW to SE as fropa will result in much cooler overnight lows generally in the 40s for NW zones and into the 50s to near 60 degrees as you go farther SE in advance of the front. As referenced above, post-frontal high temperatures on Tuesday will be some 10-20 degrees cooler as compared to what we have experienced today. Clouds will also linger behind the cold front for much of the day before gradually clearing later on Tuesday night.
The main upper trough axis will approach the area tonight, with showers/thunderstorms increasing once again, mainly for areas along and southeast of the Natchez Trace Corridor. The showers/storms will continue mainly over the southeast Tuesday morning, but will begin to shift eastward as a cold front moves across the area through the day. Cooler/drier air will build in behind the boundary Tuesday afternoon. Highs on Tuesday will range from the low 60s across the delta to the mid 70 in the Pine Belt Region.
A cold front exits tomorrow, drying most of the region out.
200 PM CST Mon Dec 9 2024 - Light snow showers exit as a low pressure system exits the Northland.
A dry cold front will bring gusty winds and colder temperatures to northern Arizona today and Tuesday. The cold front is on track moving southward near the AZ/UT border at this time. We'll see the dry cold front progress southward across northern Arizona through the day, leading to colder temperatures and gusty N-NE winds through Tuesday morning. A trough moves through Utah and Colorado today, nearly brushing Arizona to the north. Thus, dry conditions are expected given the lack of moisture with the assocaited cold front. The only real sensible weather impacts look to be cooler temperatures and breezier north/northeast winds. As the low propagates eastward, a tight pressure gradient remains in place over Arizona tonight, leading to increasing winds aloft.
1158 AM CST Mon Dec 9 2024 Updated at 1139 AM CST Mon Dec 9 2024 - Widespread dense fog this morning - Cooler temperatures Tuesday behind a cold front.
1159 AM CST Mon Dec 9 2024 - A strong cold front will move through the area this afternoon and evening bringing much cooler temperatures for Tuesday. - Below freezing temperatures are expected Tuesday night. (Today and tonight) Today will be another very warm day by December standards, but changes are on the way in the form of a strong cold front. Cannot rule out some patchy drizzle developing overnight behind the front as the low levels saturate per model forecast soundings.
(Rest of today through Tuesday) An area of high pressure over the western Atlantic and mid-level ridging across the Gulf of Mexico will continue to influence conditions over South Florida through the short term period.
(This evening through Tuesday night) A couple of vort maxes in an elongated positively tiled trough were headed south southeast from the Great Basin this afternoon. Clouds will then decrease Tuesday morning with the passage of the mid and upper level trough.
1122 AM CST Mon Dec 9 2024 - Mild and dry today ahead of a cold front later this evening.
1147 AM CST Mon Dec 9 2024 - A blustery start to the week with significantly cooler temperatures (40s) along with northwesterly wind gusts of 40-45 MPH possible this afternoon (focused on areas north of I-80).
1139 AM CST Mon Dec 9 2024 - A cold front will bring a reinforcing shot of cold air for the back half of the week.
Tonight and Tuesday Afternoon satellite imagery and surface observations show an area of low clouds and fog across the Magic Valley stretching into the lower Snake Plain this afternoon. As expected, temperatures are cold this afternoon with much of the area still below the freezing mark and it'll probably stay that way for a good portion of the region before the sun goes down. If it does transpire, it could ultimately have an impact on overnight lows keeping them warmer than currently forecast along with some fog/freezing fog concerns. High pressure ridge will continue to build over the region throughout the day tomorrow keeping things dry and allowing temperatures to warm a bit compared to today but the stratus/fog potential could play some tricks with that.
The oft-discussed dry cold front is about halfway through Arizona, currently moving southward over the Mogollon Rim. As the high pressure and cold pool behind the front deepens overnight, strong north to northeast surface winds will develop over and downstream (southwest) of the higher terrain.
(This afternoon through Tuesday) An area of high pressure over the western Atlantic and mid-level ridging across the Gulf of Mexico will continue to influence conditions over South Florida through the short term period.
A low pressure system will bring more seasonal temperatures and elevated northerly winds to the region on today and tomorrow. North winds starting to increase down the lower Colorado River Valley this morning and will only increase into this afternoon. A low pressure system will swing through eastern Utah/southwestern Nevada today, bringing elevated northerly winds and more seasonal temperatures to the region today and tomorrow. Elsewhere wind gusts will top out in the 20 to 35 mph range, with gusts up to 40 mph in the higher terrain of the Mojave Preserve and Cadiz Basin during the overnight hours. Winds will gradually decrease throughout the day on Tuesday as the low pressure system exits the region and the north-south pressure gradient relaxes. In addition to elevated north winds, this system will also bring cooler temperatures, knocking temperatures down to more seasonal values.
214 PM CST Mon Dec 9 2024 - Isolated light rain/snow showers associated with a cold front will continue through the afternoon, primarily across central Minnesota/western Wisconsin.
328 PM EST Mon Dec 9 2024 A warm front will lift north of Pennsylvania through this evening.
Updated at 612 PM CST Mon Dec 9 2024 - A strong cold front moves through the region tonight into early Tuesday, bringing colder temperatures for the middle of the coming week.
Trough axis continues to sweep eastward this afternoon, with the axis already to the south and east. One more piece of energy around the back of the trough sweeps across central WY on Tuesday, sparking a few more convective showers, mainly downwind from the Bighorns and along the higher stretches of Casper Mountain. H5 ridging then builds back across the Intermountain West, knocking back winter yet again. This will bring highs east of the Divide back into the low 40s. Cold pools west of the Divide will still hold temperatures at or below freezing, but nothing outrageous for December. The ridge does flatten back out quickly late week, allowing westerly flow to pick back up off the Pacific. Unstable northwest flow continues late this afternoon into the evening due to an elongated trough stretching from NW to SE.
311 PM MST Mon Dec 9 2024 - A cold front has moved across the area from north to south brining snow to the northern and central mountains and northern San Juans. In general snow has been light, but at times has increased in intensity with the passage of a cold front from the north. At this point the cold front has reached the southern portion of our CWA. Expected snow totals are still generally falling between 2 to 4 inches with the exception of the highest peaks of the central and northern mountains. With the prorogation of the trough through our area, flow has become more northerly.
619 PM EST Mon Dec 9 2024 A warm front will lift north of Pennsylvania through this evening.
829 PM EST Mon Dec 9 2024 Southerly flow continues across the state this evening as the ridge axis remains centered across the region. This southerly flow is leading to slightly warmer temperatures and increasing moisture. High pressure aloft is centered south of the state, with a nearly zonal flow in place across the region. At the surface, the Atlantic ridge axis extends over north Florida, keeping a southerly flow over the local area. This overall pattern remains in place through tomorrow and, after a warmer day today, we will see highs for tomorrow in the lower to mid 80s away from the immediate coast.
445 PM MST Mon Dec 9 2024 - A cold front has moved across the area from north to south brining snow to the northern and central mountains and northern San Juans. In general snow has been light, but at times has increased in intensity with the passage of a cold front from the north. At this point the cold front has reached the southern portion of our CWA. Expected snow totals are still generally falling between 2 to 4 inches with the exception of the highest peaks of the central and northern mountains. With the prorogation of the trough through our area, flow has become more northerly.
Our attention will turn to a back door cold front working into northern KS late Tuesday evening into Tuesday night. The majority of the column is forecast to remain below freezing with near-surface temperatures in the 32-35 F range. Northwesterly low and midlevel flow will persist through midweek with the midlevel trough slowly moving into the eastern CONUS.
637 PM CST Mon Dec 9 2024 - Isolated light rain/snow showers associated with a cold front will continue through the afternoon, primarily across central Minnesota/western Wisconsin.
305 PM CST Mon Dec 9 2024 - Strong cold front arrives late Tuesday and Tuesday night.
538 PM CST Mon Dec 9 2024 Updated at 221 PM CST Mon Dec 9 2024 - Cooler temperatures Tuesday behind a cold front.
312 PM CST Mon Dec 9 2024 - More snow showers and wind gusts up to 35 mph as another cold front comes through Tuesday afternoon.
High pressure aloft is centered south of the state, with a nearly zonal flow in place across the region. At the surface, the Atlantic ridge axis extends over north Florida, keeping a southerly flow over the local area. This overall pattern remains in place through tomorrow and, after a warmer day today, we will see highs for tomorrow in the lower to mid 80s away from the immediate coast.
415 PM EST Mon Dec 9 2024 A warm front will lift north of Pennsylvania through this evening.
- The arrival of a strong cold front will result in much cooler weather tonight and Tuesday, with low temperatures falling to near or below freezing Tuesday night.
643 PM CST Mon Dec 9 2024 - More snow showers and wind gusts up to 35 mph as another cold front comes through Tuesday afternoon.
A cold but moisture starved trough will exit the area this evening.
- Strong cold front arrives late Tuesday and Tuesday night.
520 PM CST Mon Dec 9 2024 - More snow showers and wind gusts up to 35 mph as another cold front comes through Tuesday afternoon.
510 PM CST Mon Dec 9 2024 - A strong cold front will move through the area this afternoon and evening bringing much cooler temperatures for Tuesday. - Below freezing temperatures are expected Tuesday night. (This evening through Tuesday) A cold front tracking southward through West Central Texas this afternoon and evening will bring cooler and drier northerly flow across the area through Tuesday. Overnight lows tonight will range from the mid 30s to lower 40s, with the coldest temperatures expected across the Big Country and potentially the typical low-lying areas experiencing temperatures nearing the freezing mark.
538 PM CST Mon Dec 9 2024 - Light snow showers exit as a low pressure system exits the Northland.
314 AM EST Tue Dec 10 2024 Rain chances will increase today and tonight with the approach and passage of a cold front.
Trough axis continues to sweep eastward this afternoon, with the axis already to the south and east. One more piece of energy around the back of the trough sweeps across central WY on Tuesday, sparking a few more convective showers, mainly downwind from the Bighorns and along the higher stretches of Casper Mountain. H5 ridging then builds back across the Intermountain West, knocking back winter yet again. This will bring highs east of the Divide back into the low 40s. Cold pools west of the Divide will still hold temperatures at or below freezing, but nothing outrageous for December. The ridge does flatten back out quickly late week, allowing westerly flow to pick back up off the Pacific.
1100 PM CST Mon Dec 9 2024 Updated at 1050 PM CST Mon Dec 9 2024 - A strong cold front moves through the region tonight into early Tuesday, bringing colder temperatures for the middle of the coming week.