Aikyam-Lab/Synoptic-Bench huggingface dataset:
312 PM CST Tue Mar 7 2017 Cold front currently making its way across SE TX this afternoon, with some rather healthy rains along and just ahead of it. This quiet pattern should hold through tomorrow and not sure what is up with the high POPS some of the models are putting out for this time frame. The next cold front is still cur- rently on tap for a Sat night passage. Cold front should slide off the coast this evening and through the coastal waters tonight.
More snow is expected over the region Tuesday and Wednesday as a warm front moves north. Temperatures are at or slightly above freezing as of noon and with temperatures continuing to slowly rise into the evening the threat for accumulating snow is low. JW 18Z TAFS: Expect lowering CIGS and visibilities into the afternoon as a warm front brings widespread rain and snow. Drying in the boundary layer from increasing west-southwest boundary layer winds behind a cold front should result in MVFR/VFR conditions becoming more common by early Wednesday morning.
/Issued 1028 AM CST Tue Mar 7 2017/ Main story today will be the dry air moving into the region in the wake of the cold front that moved through the area last night.
1030 AM CST Tue Mar 7 2017 Cold front making steady progress south and east across our terminal airspace this morning. North winds near 10kts today in the wake of the cold front will become light and variable overnight and mostly variable Wed morning.
146 PM EST Tue Mar 7 2017 Showers are expected today with the approach and passage of a cold front.
At the surface a weak cold front will approach from the northwest.
A stronger impulse associated with a surface cold front is entering the northwest corner of the state and will bring RA with the risk of TS at TCL/BHM early this afternoon and affecting terminals S and E through the afternoon and into early evening. 05 A line of showers and thunderstorms will move through the area ahead of cold front today and tonight.
This low level flow is bringing a slow increase in moisture and will continue to see scattered to broken cumulus/stratocumulus develop. Temperatures warming quickly and expect most of the area to top out in the upper 70s to lower 80s, with the exception really only being along the Levy County coast where winds are becoming more onshore and this should keep temperatures in the lower 70s. Flow shifts to south to southwest early Wednesday as the cold front approaches and then veers to northwest to north during the afternoon and evening as the front moves across the waters.
1155 AM EST Tue Mar 7 2017 Showers are expected today with the approach and passage of a cold front. The upper trough forecast to advance towards the Great Lakes today will support and push a cold front through the forecast area by early evening. As the low over Canada and high over the Tennessee Valley intensify, strong wind gusts are expected via tight pressure gradient and a deep mixing layer.
Mid/upper level ridging over Florida this afternoon will become suppressed tonight and Wednesday as a trough moves across the eastern states with a more zonal flow setting up. At the surface, high pressure over the western Atlantic will continue to move east as a cold front associated with the trough moves into north Florida late tonight and weakens as it drifts south into the region Wednesday. In the upper levels, an upper low over eastern Ontario and associated troughing extends over New England. This troughing flattens out over the southeast U. where high pressure ridging in the Gulf of Mexico and a predominant zonal flow dominates the weather pattern.
Cooler and drier weather is expected tonight behind the front.
327 PM EST Tue Mar 7 2017 A cold front continues to advance eastward across the state. On Wednesday the high will build east across the TN valley. As the high slides east Wednesday night and the valleys decouple we will see a good ridge valley temperature difference develop.
High pressure ridge will be East of the region Tonight. Cold front will slowly slide Southeast across the region Wednesday. A weak cold front across the southern portion of the region Wednesday evening will stall south of the region Wednesday night and wash out. Cooler and drier air will move into the region behind the front, with lows in the mid to upper 40s across inland southeast Georgia and the Suwannee Valley, and the 50s elsewhere.
Upper jet tied to the backside of a deep upper midwest trough continues to gradually shift north and east of the area this morning. The UT/ID border region will remain on the far southern periphery of a very active northern branch impinging on the northern Rockies states, and as such may see brief periods of precip with passage of progressive waves to the north, but in large (sensibly) the forecast area will trend much warmer and drier through the end of the week.
340 PM CST Tue Mar 7 2017 WV imagery showing upper low. lifting past the western Great Lakes region into Canada with a trailing cold front pushing into the OH/TN valley.
251 PM MST Tue Mar 7 2017 Current surface analysis shows intense area of low pressure centered over northwest Ontario, with tight pressure gradient extending all the way back south and west to high pressure over the Central Rockies. Upper level analysis shows the low over Ontario, with strong jet extending from the Pacific NW to the western Great Lakes and to the east of the low pressure system.
Either way, cooler, drier air is going to filter in and everybody should see clear skies tonight with temperatures falling into the 30s.
This too will result in warmer temperatures across this region compared to yesterday. Weak high pressure will build over the area through Wednesday, pushing the storm track farther to the north and allowing for near normal temperatures to prevail.
1036 AM CST Tue Mar 7 2017 16z/10am surface analysis shows 973mb low over western Ontario with cold front extending southward through Michigan and Indiana. In the wake of the exiting showers and thunderstorms, cooler air is moving into the region, but still milder temperatures than seasonal normals expected today. Cooler air dropping the temps down into the 30s overnight tonight with the winds losing their gusts after the column decouples this evening.
However, did increase winds a bit late this morning/early afternoon requiring an areal expansion of the High Wind Warning into the Red River Valley. Blustery conditions continue on Wednesday winds should diminish during the course of the day as high pressure ridge noses in. Any warming in the column halts as cold high pressure builds into the FA for the end of the work week. The high should shunt any higher snow chances to the south and west of the FA.
323 PM EST Tue Mar 7 2017 Showers will end this evening as a cold front travels east. High pressure will move in behind the departing front, bringing dry weather late tonight through Wednesday.
304 PM EST Tue Mar 7 2017 A cold front that will approach from the west this evening and move swiftly across central NC overnight.
129 PM EST Tue Mar 7 2017 A warm front will cross the region later this afternoon through early tonight.
155 PM CST Tue Mar 7 2017 As of the present, a cold front was moving in a NW to SE fashion across the forecast area. Before the front arrived, high temperatures did warm into the low/mid 60s. Temperatures have fallen into the 50s as the rain and cooler air filters in from the NW. Storm strength overall across the Tennessee Valley has been rather tame, given the higher surface based CAPEs have remained across SW Mississippi/Louisiana. Drier and cooler air west of the front will bring notably cooler conditions to the area tonight, with lows in the mid/upper 30s. Despite the cold front passage, the cooling trend tonight will be a short-lived affair.
1103 AM EST Tue Mar 7 2017 Update A powerful low pressure system will track eastward through Ontario today through Wednesday.
The combination of a tight surface gradient and strong subsidence in the wake of the cold front has result in 35 to 54 mph wind gusts across the region. The highest non-convective wind gust since midnight was 54 mph near Dexter Minnesota at 320 AM. For late this afternoon through this evening, a short wave trough and mid level speed max will move through the area.
1121 AM CST Tue Mar 7 2017 High pressure is now building into the region behind the front.
315 PM CST Tue Mar 7 2017 Zonal flow will persist across the FA through Wednesday with dry conditions prevailing at the lower levels through the overnight hours.
348 PM CST Tue Mar 7 2017 Water vapor imagery this afternoon shows the axis of a large trough sweeping east of Missouri, allowing a northwest flow to spread across the Lower Missouri River Valley, which will persist across the Plains through the end of the work week.
Strong southwest to west winds expected to continue today with gusts 35 to 40 knots due to strong low pressure north of Lake Superior. The deep surface cyclone northwest of Lake Superior will move toward Hudson Bay Canada. This, combined with ridging to the southwest, will keep us in a tight gradient for a couple of days.
Widespread smoke(from large wild fires across the Panhandle and western Oklahoma) is being transported across our area on low level northerly flow behind a cold front. A cold front will move south and clear out the low ceilings after 15Z, with VFR through the rest of the TAF forecast period. /issued 402 AM CST Tue Mar 7 2017/ (Today and Tonight) A cold front this morning was located along a Gainesville to Abilene to Andrews line. Expect cooler temperatures today with highs in the upper 60s to lower 70s.
Winds will gust in the 25 to 40 mph range across most of the lower elevations today. Some higher gusts to around 50 mph will be possible over and near the higher terrain. Could even be some gusts to around 60 mph over the higher terrain of Lake, Chaffee, Fremont and Teller Counties today as the upper jet tracks by a little to the north of those areas.
Medium Tight pressure gradient will remain in place though expect at least a little diurnal dropoff as the lowest levels decouple somewhat. Medium Elongated mid level shear zone shifts northeast leading to increasing ridging.
247 PM CST Tue Mar 7 2017 The cold front associated with the low pressure system sweeping across upper midwest has made it's way to the Big Bend and bringing with it some cooler temperatures. Zonal flow will take over in the wake of the passing upper trough for the next couple days. A trough off the coast of Baja will be the next driver of weather by the end of the week.
146 PM EST Tue Mar 7 2017 A weak cold front will move through the area tonight into early Wednesday bringing scattered to numerous showers but rainfall amounts are expected to be light.
238 PM MST Tue Mar 7 2017 A rapid warmup can be expected over the next couple of days with high temperatures in the lower deserts climbing well into the 80s by Wednesday.
1028 AM CST Tue Mar 7 2017 Main story today will be the dry air moving into the region in the wake of the cold front that moved through the area last night.
Expect mainly MVFR ceilings to continue to be predominant for most areas through the afternoon as a cold front pushes through the forecast area during the afternoon. Expect south winds to abruptly switch to the northwest as the cold front passes through the region with rain clearing to the south and conditions becoming generally all VFR by midnight.
1024 AM CST Tue Mar 7 2017 Increased the winds a little over central and southeast portions of Oklahoma through early afternoon with mixing ahead of lower level ridge arrival. /issued 401 AM CST Tue Mar 7 2017/ For today, a very dry air mass behind the cold front will keep dew points from near 0F to the 10Fs. For tonight, went cooler than blended guidance for low temperatures with the rather dry air mass.
325 PM EST Tue Mar 7 2017 A cold front will approach from the west tonight and cross the area Wednesday.
240 PM EST Tue Mar 7 2017 A cold front that will approach from the west this evening and move swiftly across central NC overnight.
341 PM CST Tue Mar 7 2017 The cold front has moved east of the area this afternoon, with much drier air advecting into the CWA in its wake. Dewpoints have fallen into the lower 30s across portions of northeast AR and the MO Bootheel. Winds will become light and variable this evening as the surface anticyclone settles over the area. Saturated soils should limit temperatures from getting below freezing tonight, but we do anticipate a fair amount of low to mid 30s overnight, especially in low-lying areas and river valleys across west TN and north MS.
MVFR conditions are possible overnight and into the early morning hours as a weak cold front approaches.
1133 AM CST Tue Mar 7 2017 Severe Thunderstorm Watch 69 remains in effect until noon for a few of our north central Louisiana parishes, and plan to let it continue through expiration time with ongoing line of convection along cold front. Elsewhere, cooler stable air mass continues to filter into the region behind the front with breezy N/NW winds. /issued 1030 AM CST Tue Mar 7 2017/ Cold front making steady progress south and east across our terminal airspace this morning. North winds near 10kts today in the wake of the cold front will become light and variable overnight and mostly variable Wed morning.
/issued 332 AM CST Tue Mar 7 2017/ A much more pleasant day will be in store for the forecast area compared to yesterday as a cold front continues to push south/southwest at this time. Even with wind speeds not dropping off, dry air and clear skies should allow low temperatures Wednesday morning to drop into the mid to upper 30s, with a few locations in the northwestern South Plains possibly dropping to or a few degrees under freezing.
1153 AM CST Tue Mar 7 2017 16z/10am surface analysis shows 973mb low over western Ontario with cold front extending southward through Michigan and Indiana. In the wake of the exiting showers and thunderstorms, cooler air is moving into the region, but still milder temperatures than seasonal normals expected today. Cooler air dropping the temps down into the 30s overnight tonight with the winds losing their gusts after the column decouples this evening.
1140 AM CST Tue Mar 7 2017 Cold front moving through the area will finally push the remaining rain to the southeast by 12Z or slightly thereafter. Went warmer than ensemble guidance. High pressure will build south of the area over Arkansas tonight. Gradient winds will stay relatively strong over the area tonight with the high to our south so radiational cooling will be somewhat limited even though the airmass will be dry. Expect lows to dip to near normal in the low to mid 30s.
315 PM EST Tue Mar 7 2017 Currently - High pressure over the extreme southeastern United States is responsible for moderate to fresh east breezes across the Keys and surrounding waters. Forecast - Surface winds will gradually trend downwards over the next couple of days as the ridge to our north settles southwards. Through mid week, winds will bottom out as the ridge moves off the Atlantic seaboard and the ridge retreats eastwards. Winds will continue to trend downwards over the next couple of days as a pressure ridge to our north shifts southwards than retreats eastwards into the Atlantic. An advisory will remain in effect for all waters except for the cooler Florida Bay.
1257 PM EST Tue Mar 7 2017 A cold front will move through eastern Tennessee early tonight.
153 PM CST Tue Mar 7 2017 Showers continue across mainly the SE half of the mid state as the cold front passes through the region.
Expect mainly MVFR ceilings to continue to be predominant for most areas through the day as a cold front gradually moving into the area from the west causing showers and thunderstorms to increase. Expect south winds to abruptly switch to the northwest as the cold front passes through the region with rain clearing to the south and conditions becoming generally all VFR by midnight.
1018 AM MST Tue Mar 7 2017 Nearly Stacked upper low resides over srn Manitoba with tight pressure gradient extending through the Nrn Plains.
1250 PM EST Tue Mar 7 2017 A cold front will cross the area today. High pressure will build south of the region Wednesday.
Area radars continued to pick up a broken line of convection preceding the cold front from Starkville to near Jackson Metro to Winnsboro. Expect mainly MVFR ceilings to continue to be predominant for most areas through the afternoon as a cold front pushes through the forecast area during the afternoon. Expect south winds to abruptly switch to the northwest as the cold front passes through the region with rain clearing to the south and conditions becoming generally all VFR by midnight.
Did increase some mid clouds this evening with a secondary vort axis and low level trough. Strong southwest to west winds expected to continue today with gusts 35 to 40 knots due to strong low pressure north of Lake Superior. The deep surface cyclone northwest of Lake Superior will move toward Hudson Bay Canada. This, combined with ridging to the southwest, will keep us in a tight gradient for a couple of days.
Either way, cooler, drier air is going to filter in and everybody should see clear skies tonight with temperatures falling into the 30s. A fast-moving cold front will sweep through Middle Tennessee today, bringing thunderstorms and strong winds.
/issued 1024 AM CST Tue Mar 7 2017/ Increased the winds a little over central and southeast portions of Oklahoma through early afternoon with mixing ahead of lower level ridge arrival. /issued 401 AM CST Tue Mar 7 2017/ For today, a very dry air mass behind the cold front will keep dew points from near 0F to the 10Fs. For tonight, went cooler than blended guidance for low temperatures with the rather dry air mass.
Highs will be warmer from 80-83 degrees. The frontal boundary will weaken as high pressure to the north of the state bridges the decaying boundary and a return to modest to light onshore winds will re-develop through late week with isolated marine and coastal showers and a limited temperature range.
125 PM EST Tue Mar 7 2017 Aviation A powerful low pressure system will track eastward through Ontario today through Wednesday.
Tonight and Wednesday A tight surface pressure gradient associated with strong low pressure in western Ontario will remain across the forecast area through Wednesday. Have a mention of snow showers across northern Wisconsin later tonight and Wednesday morning in cold cyclonic flow as the low moves east. Winds tonight should help to keep temperatures from tanking, but cold advection will result in much cooler highs on Wednesday.
/issued 254 AM CST Tue Mar 7 2017/ A large upper level low pressure area/trough moving across southern Canada and the north central United States will push a weak and dry cold front through the forecast area today.
315 PM CST Tue Mar 7 2017 Cold front at press time was along a Birmingham-south of Natchez- Lake Charles line and progressing southeastward. In those areas, temperatures are in the lower and middle 70s. Dew points have been in the lower and middle 60s in most areas. Cold front should move out of the area tonight, taking the precipitation with it. Should see about 24 hours of dry weather before boundary returns northward as a warm front, putting us back in the warm, unstable airmass.
At 300 PM the cold front was located just south of a Del Rio to Uvalde to San Antonio to Gonzales line.
VFR conds are expected areawide tonight until after 10z when cigs wl lowered to MVFR then IFR as another low pressure system moves across the area. /EC/ Monday: As we remain in an active northwesterly upper flow pattern, another disturbance and cold front will zip across the region during the day Monday, bringing a brief chance for showers. Moisture return will be limited ahead of this system, but forcing will be sufficient to overcome this, with the greatest rain chances from the upper Delta eastward along the Highway 82 corridor.
Dry high pressure was over the area today bringing sunny skies and temperatures in the 40s. For tonight, the high pressure center will move east as a low pressure system moves southeast from the central plains. Although much of the Mid State will hit freezing tonight, areas east of I-65 are most likely to drop into the 20s and stay there through the late night hours. On Monday, the low pressure system and a strong upper level trough will swing across the Ohio and TN Valley regions with rain spreading west to east.
248 PM CDT Sun Mar 12 2017 Today was windier and cooler than originally anticipated yesterday, clouds stuck and are thicker. The cold front is currently located just northwest of the forecast area.
105 PM MDT Sun Mar 12 2017 Extensive cloud cover is keeping temperatures several degrees cooler than what the area was previously forecast to be at mid day. For tonight decreasing cloudiness with lows in the low to mid 20s. Forecast area under fast northwest flow aloft in between upper high over southern California and low pressure over the Great Lakes.
236 PM MDT Sun Mar 12 2017 Upper ridging continues to ever so slowly move east toward our area.
A cold front will bring a wind shift to the north or northwest across the area 05-13 UTC. Cold front will approach northwest Oklahoma around 06Z and spread over terminals by end of forecast period.
A strong ridge of high pressure over the southwest U.
138 PM MDT Sun Mar 12 2017 A strong ridge will continue building over the western US through Monday night. A few showers will remain over the higher peaks north of Interstate 70 and above Steamboat Springs. Dry conditions will continue under a strong ridge which will lead to a good warming trend.
256 PM MDT Sun Mar 12 2017 A strong cold front blasted across the CWA this afternoon, and has already pushed into central Nebraska per observed surface wind and MSAS pressure tendencies.
A strong inversion remains in place, and this morning's cold frontal passage will likely not provide enough cold air aloft to eliminate the inversion from above. Around 06Z/Mon, the surface front should begin slowly moving NE as a warm front, driven by a weather disturbance aloft approaching from the Pac NW. In addition, precipitation will taper-off for most by this afternoon as a stabilizing high pressure ridge aloft builds-in from the Pac NW. Freezing drizzle may mix with the snow north of the surface front, but any ice accumulations should be no more than a trace.
347 PM CDT Sun Mar 12 2017 After today's relatively chilly March day, another cold front will make its way through the region this evening and through the early morning hours on Monday. A high amplitude ridge is forecast to develop across the southwest U. and move east toward the High Plains as a long wave trough across the eastern 1/2 of the country lifts east.
An upper level ridge begins to build up over the Pac-NW tonight to start the process of moving the Arctic cold boundary to the east through the short-term period. The warm front will bring moisture with it. Before the warm front moves in, expect another cold night with single digit lows, expect for the teens in the sw counties.
A warmer and wet pattern has better model agreement to begin to develop over the region on Monday.
232 PM CDT Sun Mar 12 2017 Dry high pressure was over the area today bringing sunny skies and temperatures in the 40s. For tonight, the high pressure center will move east as a low pressure system moves southeast from the central plains. Although much of the Mid State will hit freezing tonight, areas east of I-65 are most likely to drop into the 20s and stay there through the late night hours. On Monday, the low pressure system and a strong upper level trough will swing across the Ohio and TN Valley regions with rain spreading west to east.
Cloud cover will thicken and lower today which may limit the high temps by 1-2 degrees over yesterday. Southwest winds will back to the southeast overnight as a warm front approaches from the south.
1032 AM PDT Sun Mar 12 2017 High pressure aloft and weak offshore flow at the surface will persist through Monday.
An area of high pressure will bring unseasonably warm and dry conditions throughout the week.