Aikyam-Lab/Synoptic-Bench huggingface dataset:
(Today and tonight) If you are reading this then you have survived the worst of our arctic outbreak as warmer temperatures are in our future. But before we get to those warmer temperatures we still have to deal with the cold this morning. Temperatures have been slow to drop due to cirrus clouds but with these clouds quickly shifting east we have plenty of time for temperatures to drop into the lower to middle single digits by sunrise. Winds will remain out of the southwest overnight which will help to keep low temperatures 10 to 20 degrees warmer than this morning with most locations only dropping into the teens.
224 AM CST Tue Jan 16 2024 * Brief climb above freezing for many areas on Wednesday. Then more so by Wednesday afternoon with most locales rising above freezing for the first time in about 6 days.
Overnight, the cloud cover will clear enough to allow some radiational cooling, bringing temperature minimums into the single digits along and north of the I-30 corridor, and the low-to-mid teens elsewhere (well below normal for this time of the year and hazardous enough for an areawide Hard Freeze Warning). This means that travel will remain hazardous into Wednesday afternoon, when it appears temperatures will finally climb above freezing.
The lower deserts will see afternoon high temperatures in the mid 70s by the end of the week.
1034 PM CST Mon Jan 15 2024 (This evening through Tuesday) Temperatures are warming above freezing across the far southwestern Texas Panhandle and western South Plains today. Similar to yesterday, a weak lee trough setup in New Mexico is giving way to warm air advection due to west southwest winds across eastern New Mexico. Much of the area remains below freezing today with mostly calm winds. Another cold front will dive through the area this evening with breezy northeasterly winds to follow. Due to the breezier winds occurring late this evening, the highest threat for the coldest wind chills will take place prior to the overnight hours.
Thankfully, warmer air begins to move in tomorrow, and by Wednesday we may see temperatures as high as the low 30s, with mostly sunny sky and warmer southwesterly wind.
520 AM CST Tue Jan 16 2024 - Trending warmer today and Wednesday.
(Today through Wednesday Night) Arctic high pressure will build over Arkansas from the southern Plains today. While clouds will largely decrease, and the sun will make an appearance, temperatures will remain well below freezing for a third consecutive day. The good news is that wind speeds will come down as the high arrives, and the sun will help rid area roadways of snow/ice. As the period ends, the high will shift toward the southeast United States. The wind will turn to the south/southwest, and temperatures will climb above freezing across most of the region on Wednesday.
523 AM CST Tue Jan 16 2024 (Today and tonight) If you are reading this then you have survived the worst of our arctic outbreak as warmer temperatures are in our future. But before we get to those warmer temperatures we still have to deal with the cold this morning. Temperatures have been slow to drop due to cirrus clouds but with these clouds quickly shifting east we have plenty of time for temperatures to drop into the lower to middle single digits by sunrise. Winds will remain out of the southwest overnight which will help to keep low temperatures 10 to 20 degrees warmer than this morning with most locations only dropping into the teens.
This strong caa will continue today and limit high temperatures to near 20 degrees in our north to near freezing in our southeast. This will result in the wind will becoming lighter by afternoon and the temperatures will be a few degrees warmer so, the Wind Chill Advisory for the day will be set to expire at noon. After not reaching above freezing today, these low temperatures will result in a long duration of subfreezing temperatures and pose a risk to life and property.
(Today through Wednesday night) As the arctic air mass shifts towards the east, weak ridging will begin over the High Plains. By Wednesday night, another cold front will surge in from the north. Upper 20's and lower 30's are projected at this point, and some places my get above freezing for a few hours before temperatures drop again this evening. In the evening, another cold front will move in from the north and breezy winds in the 15-25 mph range may coincide behind the front.
530 AM CST Tue Jan 16 2024 * Brief climb above freezing for many areas on Wednesday. Then more so by Wednesday afternoon with most locales rising above freezing for the first time in about 6 days.
459 AM PST Tue Jan 16 2024 A low pressure system moving inland to the north will bring stronger onshore flow with gusty west winds for the mountains and deserts Wednesday afternoon and evening, and a deeper marine layer with a slight chance of light rain for coastal areas into the valleys on Wednesday night.
Upper ridge is cresting the region currently and has allowed stratus and fog to redevelop in the Central Valley and mountain valleys overnight. High snow levels will limit winter travel impacts to just the higher passes where 1 to 3 inches may accumulate.
515 AM CST Tue Jan 16 2024 (Today through Wednesday night) As the arctic air mass shifts towards the east, weak ridging will begin over the High Plains. By Wednesday night, another cold front will surge in from the north. Upper 20's and lower 30's are projected at this point, and some places my get above freezing for a few hours before temperatures drop again this evening. In the evening, another cold front will move in from the north and breezy winds in the 15-25 mph range may coincide behind the front.
Upper ridge moving over the silver state today bringing in drier and warmer conditions with a mix of sun and clouds. Tonight to tomorrow morning, wet conditions begin to develop again over northern Nevada as another low pressure system makes its over the northwestern U. Today, mostly sunny skies are expected as an upper level ridge moves in after the recent cold front. Calm weather is expected today with temperatures a little warmer in the 30s to 40s for highs. Small potential for patchy freezing fogs this morning in parts of Humboldt, Eureka, and Elko Counties. Tonight into Wednesday, another low pressure system makes its way over northwestern U. Low temperatures are expected to start cold, however warmer temperatures are expected move along with this system.
515 AM CST Tue Jan 16 2024 (Today through Wednesday Night) Arctic high pressure will build over Arkansas from the southern Plains today. While clouds will largely decrease, and the sun will make an appearance, temperatures will remain well below freezing for a third consecutive day. The good news is that wind speeds will come down as the high arrives, and the sun will help rid area roadways of snow/ice. As the period ends, the high will shift toward the southeast United States. The wind will turn to the south/southwest, and temperatures will climb above freezing across most of the region on Wednesday.
Current high pressure ridge axis aloft is over the WA/OR/CA coasts with a deep trough and upper level low system just west of the upper level ridge in the Pacific.
This is in response to a warm, humid airmass in place after a warm front lifted through yesterday, and ahead of an approaching cold front later today. The expectation for the remainder of the day is for these conditions to continue until the cold front pushes through.
1000 AM CST Tue Jan 16 2024 - Moderating temperatures are expected Tuesday and Wednesday, with most locations warming above freezing Wednesday afternoon.
(This afternoon through Wednesday Night) High pressure is building in from the west and this is helping to clear the clouds across the area. High pressure will be sliding to our south tomorrow and that will shift our winds southerly and start to push in a "warmer" air mass. Despite temperatures staying below freezing we should see the snow start to melt given the amount of sunshine expected.
(Rest of today through Wednesday) Active weather is expected this afternoon as a cold front drops through the area. Temperatures will reach the low to mid 80s for most areas today and then drop to the upper 60s to low 70s tomorrow behind the front. Overnight lows tonight night will range from the low to mid 50s near the lake to the low 60s along the East Coast metro.
Cold air advection will continue through tonight, with overnight lows reaching the single digits across the N, the teens across central GA, and the lower 20 across our SE zones. However, the duration of sub- freezing temperatures will increase the farther north you go.
(This evening through Wednesday night) The cold air is shifting to the east with a weak ridge briefly building across the panhandles. This will see the highs around freezing today increasing to the 50s and 60s for Wednesday. A weak cold front associated with the low is likely to pass across the panhandles late on Wednesday which should lead to Wednesday night being colder in the north that in the south.
1135 AM CST Tue Jan 16 2024 (Today and tonight) If you are reading this then you have survived the worst of our arctic outbreak as warmer temperatures are in our future. But before we get to those warmer temperatures we still have to deal with the cold this morning. Temperatures have been slow to drop due to cirrus clouds but with these clouds quickly shifting east we have plenty of time for temperatures to drop into the lower to middle single digits by sunrise. Winds will remain out of the southwest overnight which will help to keep low temperatures 10 to 20 degrees warmer than this morning with most locations only dropping into the teens.
1143 AM CST Tue Jan 16 2024 (Today through Wednesday night) As the arctic air mass shifts towards the east, weak ridging will begin over the High Plains. By Wednesday night, another cold front will surge in from the north. Upper 20's and lower 30's are projected at this point, and some places my get above freezing for a few hours before temperatures drop again this evening. In the evening, another cold front will move in from the north and breezy winds in the 15-25 mph range may coincide behind the front.
(This afternoon through Wednesday night) Another night of temperatures well below freezing is in store for the area. Most other spots see temperatures in the 20s to near freezing along the Rio Grande. Wednesday night lows fall near normal in the low to mid 30s for the Basin and southeast New Mexico. Once again, the divide in temps is along the Pecos River with 40s across some of the higher terrain.
* Temperatures moderate Wednesday into Wednesday night but remain below freezing.
1136 AM CST Tue Jan 16 2024 - Trending warmer today and Wednesday.
(This evening through Wednesday) Cooler than normal temperatures remain in place across our area with highs today at or just short of the freezing mark. The increased surface southwesterlies will be carrying much warmer temperatures along with them, as highs climb up to the upper 50s to low 60s, especially on the Caprock.
Temperatures will be warmer than what has been seen lately, but still cold and well below freezing.
A 1037 mb arctic high pressure system centered over the Red River Valley will slowly drift over the Lower MS Valley tonight.
Ahead of a developing trough over western Texas, upper level flow will become more prominently southwesterly tomorrow, allowing daytime heating to begin to take control of the forecast again.
The ongoing Arctic cold spell will persist through the upcoming weekend as temperatures remain below freezing.
1053 AM MST Tue Jan 16 2024 Morning Update: Enough warmer temperatures are moving in the region from the south, that the wind chill advisory is not longer needed, and has been cancelled accordingly.
The upper level trough is to our east today, putting us in northwesterly flow aloft. The winds will remain light this evening and overnight as the high pressure dampens the wind speeds. Winds will start to pick up tomorrow morning as the pressure gradient tightens between the high to our east and the low to our northwest.
Warmer air will move in aloft but also at the surface overnight as moisture begins to overspread the region. The only thing to keep an eye on will be the potential for rain/snow mix or all rain even in parts of the lower Snake and especially the Magic Valley. Temperatures Wed night into Thu AM look to be much warmer than the past few days, near freezing in the south, with teens and 20s more likely across the northern half of the region in the central mountains and Upper Snake highlands.
The low temperatures and some falling and blowing snow will make for hazardous travel conditions overnight into Wednesday.
916 AM PST Tue Jan 16 2024 Patchy dense fog early this morning will give way to sunshine and warmer temperatures today.
* Brief climb above freezing for many areas on Wednesday. Then more so by Wednesday afternoon with most locales rising above freezing for the first time in about 6 days.
Water vapor shows several short waves dropping south and then southeast around upper low in northeast Manitoba.
524 PM CST Tue Jan 16 2024 (This afternoon through Wednesday Night) High pressure is building in from the west and this is helping to clear the clouds across the area. High pressure will be sliding to our south tomorrow and that will shift our winds southerly and start to push in a "warmer" air mass. Despite temperatures staying below freezing we should see the snow start to melt given the amount of sunshine expected.
235 PM MST Tue Jan 16 2024 As a slightly warmer and slightly more moist air mass moves into the region, chances for snow are increasing as the colder arctic air is pushed away toward the northeast.
(This evening through Wednesday) Clear skies will continue through the remainder of Tuesday and into Wednesday as the upper level trough continues to shift east out of the region.
Northwest winds ranging from 10-15 mph have made air temperatures close to 0F feel much, much cooler with wind chills ranging from -10 to -20F this morning.
447 PM CST Tue Jan 16 2024 (This evening through Wednesday) Clear skies will continue through the remainder of Tuesday and into Wednesday as the upper level trough continues to shift east out of the region.
554 PM CST Tue Jan 16 2024 (This evening through Wednesday) Cooler than normal temperatures remain in place across our area with highs today at or just short of the freezing mark. The increased surface southwesterlies will be carrying much warmer temperatures along with them, as highs climb up to the upper 50s to low 60s, especially on the Caprock.
(Now through Wednesday) Mid-afternoon surface observations are reporting that most locations southeast of I-65 have risen above the freezing mark, but areas along and to the northwest have remained below freezing.
A ridge of high pressure will allow temperatures to increase through the week into the weekend. A ridge of high pressure will continue to build over the Desert Southwest through the remainder of the work week. However, a weak disturbance will ride along the ridge through the Great Basin tonight and Wednesday. Precipitation will be limited to the highest elevations of the southern Great Basin, with less than a half of an inch of snow possible in the mountains of Lincoln County, and up to 8 inches possible in the eastern Sierra above 8500 feet.
Despite some light rain along the Lower Keys right now, we have yet to see the main event. A cold front is currently draped across Central Florida. This SCA may also extend into the nearshore waters of the Lower Keys, but letting one more run of guidance or two will aid in more accurately creating tomorrow's forecast. Cooler temperatures will only last Wednesday as the cold front is expected to stall in the Straits of Florida and return as a warm front. From synopsis, gentle southwest breezes will shift to the north and freshen tonight as a cold front moves through the Keys coastal waters. Breezes will quickly veer around the compass yet again late this week as high pressure in the wake of the front moves quickly offshore from the southeast United States.
614 PM EST Tue Jan 16 2024 Low pressure continues tracking northward toward the Canadian Maritimes with drier and colder air overtaking the area tonight.
Perfectly sunny skies have persisted today as we sit just east of a ridge.
459 PM CST Tue Jan 16 2024 (Tonight through Wednesday night) The deterministic GFS/ECMWF/NAM predict a progressive upper pattern over the CONUS during the period, with dry/cold conditions tonight/early Wednesday over the CWA, along with a surface anticyclone in the vicinity, followed a transition to onshore flow/increasing moisture/warmer temperatures Wednesday afternoon/night.
Warmer air is expected to move in during the overnight with rising snow levels. Another short wave ridge will move in late Wednesday, bringing another round of drier conditions. All models are showing the upper ridge sliding off to the east.
Drier conditions have developed across east central Florida, now that the earlier cold front is making its way into south Florida. The main story overnight will be the colder temperatures, as cooler air is advected in behind the front along north- northwesterly winds. Then, will see clearing to VFR from north to south into Wednesday morning, as CIGs lift behind the cold front.
(Tonight through Wednesday night) The deterministic GFS/ECMWF/NAM predict a progressive upper pattern over the CONUS during the period, with dry/cold conditions tonight/early Wednesday over the CWA, along with a surface anticyclone in the vicinity, followed a transition to onshore flow/increasing moisture/warmer temperatures Wednesday afternoon/night.
The low temperatures and some falling and blowing snow will make for hazardous travel conditions overnight into Wednesday. For the marine zones, with water temperatures 5 to 6 deg C, we downplayed the mention of heavy freezing spray to moderate.
504 PM CST Tue Jan 16 2024 (This afternoon through Wednesday night) Another night of temperatures well below freezing is in store for the area. Most other spots see temperatures in the 20s to near freezing along the Rio Grande. Wednesday night lows fall near normal in the low to mid 30s for the Basin and southeast New Mexico. Once again, the divide in temps is along the Pecos River with 40s across some of the higher terrain.
Thankfully, warmer air is moving into the region with southwesterly wind and clear sky. We are already warmer (teens) than we have been for the past five days. By tomorrow we may see temperatures as high as the low 30s, with mostly sunny sky and warmer south wind.
00z surface map indicated 1030 mb high pressure centered over northeast TX, and 1000 mb low pressure over central Canada. This puts forecast lows from a few degrees below zero over the deep snowpack of the northern CWA, to the low single digits elsewhere. The high-res guidance on the first one is a little more variable, with the NAM Nest with a more northern and slower passage, though more of the guidance is further south. The second wave is expected to be a bit more noticeable, with a sharpening trough as it swings through late Thursday night.
Despite mostly clear skies tonight, south-southwest winds help keep temperatures noticeably warmer than previous nights, especially west of the Pecos.
High pressure moving out of western Canada will push an arctic front through Nebraska on Thursday with temperatures steady to slowly falling through the single digits north of I-80 and only rising briefly before falling to the south.
213 AM CST Wed Jan 17 2024 - Temperatures may finally reach or exceed the freezing mark, if not today, then Thursday.
On the backside of this low, thermal ridging builds into the northern plains with a tightened pressure gradient leading to more chances for blowing snow late week though only about 20% confidence due to how far out we are.
This does make the low temperature forecast a tricky one - although the coldest temps (single digits below zero) should reside across northern/eastern SD into west central MN.
1037 PM CST Tue Jan 16 2024 (Tonight through Wednesday night) The deterministic GFS/ECMWF/NAM predict a progressive upper pattern over the CONUS during the period, with dry/cold conditions tonight/early Wednesday over the CWA, along with a surface anticyclone in the vicinity, followed a transition to onshore flow/increasing moisture/warmer temperatures Wednesday afternoon/night.
At the surface, high pressure is located to our southeast with southwesterly winds in the Panhandles as a result, with temperatures generally hovering above 10 so far. Today, expect much warmer conditions as surface lee troughing develops to our northwest as the OR wave advances over the Rockies, driving breezy winds out of the southwest. While remaining snow cover should be minimal, favorable downslope winds for warming look to be less prominent as Wednesday night will feature the arrival of a weak cold front, with winds initially out of the northwest at sunrise. Thursday night, stronger cold front looks to arrive during the evening hours.
Issued by National Weather Service San Angelo TX 1044 PM CST Tue Jan 16 2024 (This afternoon through Wednesday night) Another night of temperatures well below freezing is in store for the area. Most other spots see temperatures in the 20s to near freezing along the Rio Grande. Wednesday night lows fall near normal in the low to mid 30s for the Basin and southeast New Mexico. Once again, the divide in temps is along the Pecos River with 40s across some of the higher terrain.
224 AM CST Wed Jan 17 2024 * A brief return above freezing for many areas today.
323 AM EST Wed Jan 17 2024 High pressure over the area with below average temperatures today into tonight.
Rain and snow showers will be possible over far northern Arizona on Wednesday, with breezy winds and slightly cooler temperatures expected elsewhere.
Approaching Pacific warm front will push the arctic air out of our CWA overnight and Wednesday but not as fast as models have been predicting. The warm front will bring several more inches of snow to our CWA with enough for a Winter Storm Warning in the Treasure Valley, Upper Weiser River Valley, Owyhee Mountains, and Malheur County late tonight through Wednesday morning. Snow will mix with or change to rain at low elevations but pockets of sub- freezing air will cause a chance of freezing rain in those colder counties.
115 AM EST Wed Jan 17 2024 Cool high pressure will build in through Thursday.
1037 PM CST Tue Jan 16 2024 (This evening through Wednesday) Cooler than normal temperatures remain in place across our area with highs today at or just short of the freezing mark. The increased surface southwesterlies will be carrying much warmer temperatures along with them, as highs climb up to the upper 50s to low 60s, especially on the Caprock.
141 AM EST Wed Jan 17 2024 Low pressure continues tracking northward toward the Canadian Maritimes with drier and colder air overtaking the area.
Another system is expected to move through on Thursday, bringing a mix of snow, rain, and freezing rain to the Mid-South.
A cold front pushed through the Florida Keys island chain from west to east in the late evening and overnight hours. The frontal feature will push back northward as a warm front on Thursday, with winds clocking around to the southeast to south and slackening through Thursday night.
However, where melting occurs, patches of ice will reform at night given a continuation of subfreezing readings. Pockets of very light freezing rain/some sleet may briefly develop from central into eastern Arkansas before changing to liquid.
(Today through Tonight) A broad and very deep long wave trough still encompasses almost 3/4 of the country with the apex now east of the Mississippi River Valley. Even have near to slightly below freezing temps all the way down to Grand Isle. Rapidly increasing 500mb heights expected today as this trough quickly moves eastward which allow for substantial moderation compared to yesterday.
414 AM CST Wed Jan 17 2024 - Warmer today with afternoon highs ranging from the mid 20s to the mid 30s.