Aikyam-Lab/Synoptic-Bench huggingface dataset:
Issued by National Weather Service Pueblo CO 430 AM MDT Tue Mar 30 2021 Upper trough sinking southward across northern CO has developed a nice jet induced snow band which extends across the front range, across the south side of Denver and up towards AKO. Overall, warm road surfaces should produce sufficient melting to limit impacts across the lower elevations, though roads could become slushy at times under the heavier snow bands this morning. Should see a clearing trend overnight which will allow temperatures to drop into the teens to around 20 across the lower elevations with mountain areas generally in the single digits and teens.
626 AM EDT Tue Mar 30 2021 Dry weather will continue today as high pressure shifts offshore. Rain chances return tonight and Wednesday ahead of a cold front that should push through Wednesday night.
A cold front is currently pushing through the region with gusty south winds veering around to northwesterly with the passage of the front, but still quite gusty at 30 to 35 mph.
This area of cloud cover will expand in coverage to encompass the state as an elongated area of low pressure deepens over the Plains and moves SEwrd. Aloft, a deepening trough will slide towards the region providing weak large scale forcing for ascent. Coverage is expected to become more spotty during the afternoon hours before influences of an approaching cold front ramps PoPs up again across the state. Showers and thunderstorms will increase in coverage as the cold front works its way across AR. Upper level dynamics supplied by the incoming trough will be out of sync with the precipitation and largely move across the state behind the surface cold front. Temperatures will be much cooler behind the front, especially at night, and as high pressure settles in over the region.
Light winds are expected Wednesday as 1033mb high pressure will be moving overhead.
Winds may diminish briefly before a cold front shifts winds from the northeast and become gusty once again. /issued 348 AM CDT Tue Mar 30 2021/ An upper level trough will push down from the northwest today and create a mountain wave signature over the Guadalupe and Delaware Mountains, although gradients won't be overly tight. A front will move down as the trough sweeps through, although it's expected to stall along the northern boundary between our CWA and Lubbock's thanks to diurnal heating this afternoon. As the sun sets and temperatures cool this evening, the cold front will make its appearance and push through the Permian Basin. Temperatures Wednesday afternoon will be about 20 degrees cooler than Tuesday, with highs in the 60s everywhere except the Rio Grande.
Latest surface analysis places a 998mb low over Kansas, with a cold front extending back into the Oklahoma Panhandle. Aloft, a large trough encompasses the western half of the United States, with ridging over the eastern CONUS. A maritime warm front will lift north this morning and make it through much of the Mid-South by this evening. Nonetheless, the best combination of shear and instability looks to be over north Mississippi around midnight, as moisture pools ahead of the cold front. The aforementioned cold front is expected slow down a bit as the main trough hangs back until Wednesday evening.
Clear skies overnight with morning low temperatures in the lower to middle 40s. The short term models are in excellent agreement that a longwave troughs will move through the central US.
625 AM CDT Tue Mar 30 2021 (Today and tonight) The cold front over northwestern Oklahoma will push southeast through the day ushering in cooler temperatures, although the frontal passage in the south will be late enough that warm temperatures in the upper 70s and lower 80s are expected again today in north Texas and far southern Oklahoma. One interesting thing to note in the models is the RAP signal of getting some showers developing east of OKC around daybreak tomorrow as the upper-level trough moves over the area.
The cold front is through much of central Iowa and pushing into eastern Iowa with GOES-East Nighttime Microphysics RGB showing plenty of low clouds following behind the front. Those clouds will continue to slide through the state today as a longwave trough moves over the region.
Update to expire the high wind warning, replaced with a wind advisory. Currently, stacked low pressure continues to push east across far southern Canada, now moving into southern Ontario.
450 AM CDT Tue Mar 30 2021 A strong area of low pressure moving through northwest Ontario will bring windy conditions to the Northland today and tonight. The atmosphere remains fairly dry even with a southwesterly flow ahead of a cold front that will move across the area today. Temps ahead of the cold front early this morning were in the 50s, and behind the front were dropping into the 30s. Another cold front moves across the region tonight accompanied by additional cold air advection. A few snow showers may get wrung out of the limited amount of moisture available for the cold front to work with in the evening. Dry high pressure arrives for the rest of the night and Wednesday.
High pressure will remain in place through mid week with dry weather and warming temperatures.
Brisk sums up the weather for today, as much colder air filters into the region behind a strong cold front. Temperatures this afternoon look to range from the low 30s across central Minnesota to the low 40s from far-southern Minnesota and west-central Wisconsin. Elevated fire weather conditions will also develop this afternoon as drier air continues to filter into the area behind the cold front, however, the mostly cloudy skies and cool temperatures should prevent any widespread critical conditions. Winds finally begin to diminish overnight as the deep cyclone to our north pulls off towards Hudson bay and the pressure gradient slackens across the region.
Otherwise, look for increasing southerly flow as the warm front pushes through the area with gusts up to 20-25 mph. By tonight, the warm front will have lifted north of the CWA, but more showers and thunderstorms are expected to develop ahead of a cold front to our west. 5" rainfall with the highest amounts north of the TN River. The cold front pushes through the area from west to east Wednesday afternoon exiting northeast Alabama by sunset. Temperatures Wednesday night will quickly fall into the lower 30s bringing the potential for frost for most locations in our forecast area.
With the main upper trough axis hanging back to the West through mid to late morning this set up may continue to bring some decent snow to the area through sunrise then most of the heavier snow should migrate to the front side of the hills.
This evening and overnight into Wednesday morning, a cold front will bring additional tstms mainly to KTXK/KELD/KTYR/KGGG. Warm front currently down along the nrn Gulf Coast will lift nwd today, and settle invof the I-30 corridor by later this aftn. Shwrs and isold tstms will be possible as the warm front makes its nwd move today. Meanwhile, positively tilted upper trof axis will dig sewd, bringing a developing cold front into nwrn areas by this evening. More rigorous convection will be possible as the trof approaches and the front begins a sewd drive. Convection will begin to clear the region by Wednesday aftn, with a cooler and drier airmass settling swd. By Wednesday night, the cold front in the short-term will be fully pushed through the Four-States region.
High pressure start to build back into the region late Wednesday, with temperatures warming through the weekend. Highs today are expected to be a bit more seasonable for the day today, with lows overnight becoming a little cooler than the day before. A ridge off the Pacific begins to build into the desert Southwest on Wednesday with temperatures starting to warm in response. NBM deterministic guidance was on the low end for overnight lows and afternoon highs based on ensemble guidance, so temperatures were bumped up accordingly in the short term. A weak low pressure system has formed over the Pacific Ocean west of Baja California.
956 AM CDT Tue Mar 30 2021 Seeing some snow showers moving across the FA this morning, mainly along and north of the highway 200 corridor. Overall though winds will not be quite as strong as we head beyond 12z so will let the high wind warning expire.
As clouds thin through late morning, roads will trend warmer from solar energy, and begin to melt the ice and snow presently on road surfaces across the region.
1056 AM EDT Tue Mar 30 2021 Subtropical ridge is holding firmly across the region. No surprise, with a southeast wind, temperatures are already in the lower 80s across the island chain.
641 AM CDT Tue Mar 30 2021 A strong area of low pressure moving through northwest Ontario will bring windy conditions to the Northland today and tonight. The atmosphere remains fairly dry even with a southwesterly flow ahead of a cold front that will move across the area today. Temps ahead of the cold front early this morning were in the 50s, and behind the front were dropping into the 30s. Another cold front moves across the region tonight accompanied by additional cold air advection. A few snow showers may get wrung out of the limited amount of moisture available for the cold front to work with in the evening. Dry high pressure arrives for the rest of the night and Wednesday.
/issued 303 AM EDT Tue Mar 30 2021/ Currently at the surface, a stalled frontal boundary is draped across the central Florida Peninsula, but is forecast to start to slowly lift north later this morning as a warm front.
Currently, stacked low pressure continues to push east across far southern Canada, now moving into southern Ontario.
A ridge of high pressure off the coast will slowly move into the region as the upper level trough moves east. This will provide clear skies, warmer temperatures and light winds today while overnight lows will be cold with some frost likely.
1059 AM EDT Tue Mar 30 2021 Windy and mild conditions can be expected today in advance of a cold front.
Temperatures will warm into the low to mid 90s across the west today as cloud cover begins to scatter. Temperatures will be a bit cooler over the Coastal Bend with clouds expected to remain through the day. An upper level trough will push a strong cold front into South Texas Wednesday morning. Behind the front, cooler and drier air will move in as strong north to northeasterly winds develop.
1033 AM EDT Tue Mar 30 2021 Warm front will lift gradually northward of central Florida by later today, with warmer temperatures expected across the area. Highs will reach the low to mid 80s along the coast to mid to upper 80s inland. Warm front across the area will lift north of the waters later today.
903 AM EDT Tue Mar 30 2021 Dry weather will continue today as high pressure shifts offshore. Rain chances return tonight and Wednesday ahead of a cold front that should push through Wednesday night.
Blustery north winds and cooler temperatures are expected today.
530 AM MDT Tue Mar 30 2021 Upper trough axis extended from a low north of Minnesota southwest across the central Rockies and into southern California.
Surface ridging still in control of area weather with clear to mostly clear skies. Big changes in the pattern tonight as a deepening mid latitude cyclone over southern Manitoba now strengthens as it moves northeast and brings a strong cold front into the Mississippi Valley late today and then across the Tennessee Valley overnight into Wednesday. As the upper trough approaches tonight strong mid level flow will increase moisture and dew points over the south including the eastern Tennessee Valley. A warm front will spread north from the Gulf Coast this morning and afternoon and could reach southeast Tennessee by this evening. Elevated instability will help to set off thunderstorms north of the warm front after midnight and trigger possible heavy rainfall southern valley and plateau late tonight.
Gusty winds and elevated fire weather conditions will continue this morning and today as the pressure gradient remains tight ahead of and along a cold front. High temperatures will be several degrees cooler today as a result of the front, ranging from around 60 degrees over far western Missouri to the upper 60s near the Missouri/Arkansas border. The lingering rain will move east of the area on Wednesday morning, with a much cooler and drier air mass moving into the region behind the cold front.
Partly to mostly cloudy skies will continue through the day with the highest chance of showers (30-50 % POPs) north of the I-4 corridor. Temperatures are already in the low 70's and will continue to warm up into the mid 80's near the coast to near 90 over the inland areas.
Afternoon temperatures will remain 5-10 degrees below the seasonal average for this one last day before high pressure develops over the region. Warm and mostly dry high pressure will be present over the Northern Rockies Wednesday through the weekend. Light snow showers embedded in northwest flow at the ridgetops will slowly diminish across Northern Rockies air space throughout Tuesday.
Then, a cold front will pass through the terminals and bring a northerly winds shift. To the north, a cold front was just entering the northwest Texas Panhandle. Tonight's lows will return to the cool side; ranging from upper 20s in the far southwest Texas Panhandle to around 40 in the Low Rolling Plains. Lows tomorrow night will be on the chilly side with at to below freezing expected across the Caprock and mid 30s across the Rolling Plains.
Also, a cold front will move south to near the I-20 corridor by 00Z.
Big changes in the pattern tonight as a deepening mid latitude cyclone over southern Manitoba now strengthens as it moves northeast and brings a strong cold front into the Mississippi Valley late today and then across the Tennessee Valley overnight into Wednesday. As the upper trough approaches tonight strong mid level flow will increase moisture and dew points over the south including the eastern Tennessee Valley. A warm front will spread north from the Gulf Coast this morning and afternoon and could reach southeast Tennessee by this evening. Elevated instability will help to set off thunderstorms north of the warm front after midnight and trigger possible heavy rainfall southern valley and plateau late tonight.
620 AM CDT Tue Mar 30 2021 Some isolated sprinkles were able to squeeze out of the atmosphere overnight as a cold front pushed through the region. Elevated fire weather concerns continue with relative humidity dipping into the low 20s to low 30s this afternoon across much of the region. Behind the system that moves across the region today, large scale ridging is expected to form over the western half of the country. This ridging looks to remain in place through the weekend for a several day stretch of dry weather.
Expect another sunny day on Wednesday, with lighter winds and warmer temperatures. After the frosty start today, temperatures aloft will continue to warm as an upper level ridge over the Pacific builds eastward toward the West Coast.
626 AM CDT Tue Mar 30 2021 A cold front will move across Illinois this afternoon, bringing scattered rain, mainly east of the Illinois River Valley.
836 AM CDT Tue Mar 30 2021 A strong area of low pressure moving through northwest Ontario will bring windy conditions to the Northland today and tonight. The atmosphere remains fairly dry even with a southwesterly flow ahead of a cold front that will move across the area today. Temps ahead of the cold front early this morning were in the 50s, and behind the front were dropping into the 30s. Another cold front moves across the region tonight accompanied by additional cold air advection. A few snow showers may get wrung out of the limited amount of moisture available for the cold front to work with in the evening. Dry high pressure arrives for the rest of the night and Wednesday.
652 AM CDT Tue Mar 30 2021 Update to expire the high wind warning, replaced with a wind advisory. Currently, stacked low pressure continues to push east across far southern Canada, now moving into southern Ontario.
Winds remained gusty this morning as a cold front approached the area from the west. The cold front from the west is expected to move through the area today bringing with a wind shift and cooler air for the short term. Today: Cold front will push across the area but should come through dry as forecast soundings indicate there is a lack of moisture in the column. Highs will range from the lower 50s in our nw cwa to the lower 60s in our se. Lows will bottom out in the mid 20s nw to the lower 30s se.
Cloud cover will continue to increase over the CWA this morning with low and mid clouds common by late morning/early afternoon as a cold front moves into the CWA. /Issued 341 AM CDT Tue Mar 30 2021/ At 3am a strong cold front extended from the northwest tip of Missouri to northwest Oklahoma. The base of the upper trough and associated 125 knot 300 mb wind max will provide lift along the back edge of the moisture to support showers continuing in parts of northwest Arkansas into the late night hours tonight when temperatures are cooling. If the precipitation is a little heavier than currently expected, enough cooling could occur in the higher terrain to support a few snowflakes. Temperatures in parts of northeast Oklahoma and northwest Arkansas should fall to near or a few degrees below freezing.
153 PM PDT Tue Mar 30 2021 East winds will decrease this evening, then high pressure builds into the region with warmer temperatures Wednesday into the weekend.
1011 AM CDT Tue Mar 30 2021 A cold front will move across Illinois this afternoon, bringing scattered rain, mainly east of the Illinois River Valley.
316 PM CDT Tue Mar 30 2021 A cold front has moved into our northwest counties and it will continue to move through the rest of the area through early evening. Temperatures will turn much cooler tonight and Wednesday with dry Canadian air moving south into the region.
1250 PM CDT Tue Mar 30 2021 A cold front has passed through the terminals this morning and brought a northerly wind shift. To the north, a cold front was just entering the northwest Texas Panhandle. Tonight's lows will return to the cool side; ranging from upper 20s in the far southwest Texas Panhandle to around 40 in the Low Rolling Plains. Lows tomorrow night will be on the chilly side with at to below freezing expected across the Caprock and mid 30s across the Rolling Plains.
Last evening's cold front has brought a much cooler Canadian air mass into the region for today. With continued cold air advection, high temperatures only reach into the low to mid 40s, which is about 5 degrees below seasonal averages. The potent upper-level trough remains overhead as well, so scattered cloud cover is likely through at least the first half of the day as upper-level synoptic lift spreads cirrus across the Midwest.
1143 AM CDT Tue Mar 30 2021 Gusty winds and elevated fire weather conditions will continue this morning and today as the pressure gradient remains tight ahead of and along a cold front. High temperatures will be several degrees cooler today as a result of the front, ranging from around 60 degrees over far western Missouri to the upper 60s near the Missouri/Arkansas border. The lingering rain will move east of the area on Wednesday morning, with a much cooler and drier air mass moving into the region behind the cold front.
306 PM CDT Tue Mar 30 2021 A cold front passed through the area today which has led to gusty NW winds of 20 to 35 mph. high confidence on freezing temperatures. Quiet and cold conditions will be seen across the area Wednesday night as high pressure moves through the area.
1242 PM CDT Tue Mar 30 2021 A cold front extending from WI southwest through the TX Panhandle will move southeastward through our forecast area today and this evening as a positively tilted upper level trough approaches. Above normal temperatures will continue across east central and southeast MO and southwest IL today ahead of the cold front. Showers will develop this afternoon and evening along and just behind the cold front across east central and southeast Missouri and southwest IL as the front intercepts better low level moisture. Post frontal light rain may continue across southeast MO and southwest IL late tonight and Wednesday morning until the upper level trough shifts east of the region. Much colder temperatures can be expected tonight and Wednesday due to strong low level cold air advection behind the cold front, and falling upper level heights.
Even with high pressure briefly building in on Wednesday, northwest supported flow in the upper trough will still mean breezes of 15 to 25 mph with some locally higher gusts.
1206 PM CDT Tue Mar 30 2021 A cold front will move across Illinois this afternoon, bringing scattered rain, mainly east of the Illinois River Valley.
It was a sunny late morning with temperatures in the low to mid 60s across Middle Tennessee. The moisture will surge northward this afternoon, then channel across Middle Tennessee tonight ahead of the advancing cold front.
1018 AM CDT Tue Mar 30 2021 Sfc cold front just pushing into northern sections of Osage and Washington counties as of mid morning.
It will be noticeably cooler Wednesday with highs struggling to reach 50.
248 PM EDT Tue Mar 30 2021 Abundant sunshine along with a moderately gusty southerly breeze will bring noticeably warmer conditions to central PA today.
1018 AM MDT Tue Mar 30 2021 The upper level jet and trough continue to push across the state and to the northeast. Upper trough sinking southward across northern CO has developed a nice jet induced snow band which extends across the front range, across the south side of Denver and up towards AKO. Overall, warm road surfaces should produce sufficient melting to limit impacts across the lower elevations, though roads could become slushy at times under the heavier snow bands this morning. Should see a clearing trend overnight which will allow temperatures to drop into the teens to around 20 across the lower elevations with mountain areas generally in the single digits and teens.
As a cold front begins to progress southwards across the Florida Peninsula on Wednesday night, the persistent ridge of high pressure that has dominated our synoptic flow over the last several days will remain in place during the overnight hours.
Southwesterly flow aloft prevails as a large positively tilted upper level trough moves eastward across the central CONUS today, tilting neutral Wednesday and digging into the southeastern U. A nose of high pressure resides over the area today into tonight, and will quickly give way to an approaching intense cold front Wednesday night. Rain chances ramp up late Wednesday morning into early afternoon, with thunderstorm chances increasing ahead of the cold front Wednesday afternoon into evening. A line of thunderstorms will likely develop along the southeastward advancing cold front, and will sweep quickly across the CWA during the evening hours. Temperatures soar again tomorrow into the upper 70's and lower 80's prior to FROPA, with a sharp crash behind the cold front into the upper 40's and lower 50's.
A gradual trend down will occur tonight and eventually become light/variable Wednesday night with a high pressure ridge overhead.
1009 AM CDT Tue Mar 30 2021 Warm frontal boundary beginning to lift inland this morning, with dew points in the upper 60s to around 70 noted near the coast, and dew points in the upper 50s to low 60s noted further inland ahead of the boundary. Though expect activity to increase by this afternoon with the combination of the warm front and better diurnal heating.
High pressure is expected to build into the area this evening.
1134 AM MDT Tue Mar 30 2021 Upper trough axis extended from a low north of Minnesota southwest across the central Rockies and into southern California.
(This evening through Wednesday) Tonight's cold frontal passage will bring cooler temperatures to the region. In fact, most areas will see high temperatures in the low to middle 60s for tomorrow afternoon.