Aikyam-Lab/Synoptic-Bench huggingface dataset:
546 AM CST Wed Mar 7 2018 Flow aloft has become northwesterly across the region, as a significant low pressure system pushes east through the Great Lakes today, and a ridge builds over the western half of the country. Clearing skies this afternoon will allow temperatures to warm into the lower 40s near the Kansas/Nebraska border.
The cold front is presently moving over the Treasure Coast and will push offshore our southeast coast by midday. Max temps will reach the lower 70s, except mid 70s from Okeechobee to the Space and Treasure Coasts.
405 AM CST Wed Mar 7 2018 Clearing skies this morning will give way to a sunny afternoon across the region in the wake of yesterdays strong low pressure system. While this low is currently across the Great Lakes region and the pressure gradient has relaxed significantly across the local area. these relatively lighter winds along with ample sunshine and warmer temperatures should make for a nicer day across the region. these warmer temperatures and somewhat gusty winds could also result in elevated to near critical fire weather concerns across portions of north central Kansas this afternoon. with overnight lows dipping into the lower to mid teens. The warm advection will continue into Thursday night with warmer temperatures again.
/issued 345 AM CST Wed Mar 7 2018/ WV imagery shows an upper-lvl ridge moving east into the wrn CONUS this morning as a trough meanders thru the Great Lakes region. A trough moving into the PacNW is forecast to dampen the ridge somewhat over the next few days, but thicknesses are still on tap to increase over West Texas and Southwest New Mexico thru at least Sat, resulting in increasing temps thru then. Fortunately, dewpoints should steadily come up over the next few days as sfc flow veers, and winds under the incoming ridge look inconsequential thru at least Thu. Fri, leeside troughing along the Front Rage will result in increased westerly flow in the Guadalupes, for possible critical fire wx during the afternoon.
848 AM MST Wed Mar 7 2018 With an upper level ridge off to our west and NW flow aloft, expect a dry, mild day today, except for below average temperatures. However, that will be warmer than yesterday.
440 AM MST Wed Mar 7 2018 Updated Aviation Discussion High pressure over the region will bring overall dry conditions today and tonight with just some patchy fog across portions of north-central Montana this morning and likely to redevelop again tonight.
622 AM EST Wed Mar 7 2018 A cold front will surge through central and eastern NC this morning.
329 AM MST Wed Mar 7 2018 High pressure over the region will bring overall dry conditions today and tonight with just some patchy fog across portions of north-central Montana this morning and likely to redevelop again tonight.
454 AM CST Wed Mar 7 2018 Today looks much quieter across the region as a strong upper level short wave trough departs to our southeast. The back edge of these clouds should start progressing east early this morning as a 850 mb thermo trough does likewise.
An upper level low will influence the area into Thursday, keeping cold air flowing into central Indiana, as well as bringing some chances for light snow or flurries into tonight.
Upper air pattern consists of a 500 mb ridge in the Rockies 12z Thu with a closed low north of Toronto. Troughing then moves into the northern plains late Fri night. A trough moves into the upper Great Lakes 12z Sun. A strong 500 mb ridge moves into the western U. Troughing remains on the east coast from Mon into Wed.
High pressure will cover the southern Plains today. /issued 320 AM CST Wed Mar 7 2018/ Cool high pressure will settle over the southern Plains today, providing a much calmer day today, as compared with yesterday. It will also be slightly cooler.
Otherwise, the large upper low over the wrn Great Lakes will move to srn Ontario, Canada and the Lower Great Lakes by late tnt. A couple vorticity lobes will rotate around the low affecting srn WI this afternoon and late tnt.
545 AM CST Wed Mar 7 2018 High pressure will continue to build into Arkansas today.
523 AM CST Wed Mar 7 2018 A broad upper low continues across most of the Midwest early this morning, with the main center near the Upper Peninsula of Michigan. However, the upper trough axis currently extending northwest across the Minnesota Arrowhead will swing southward through the day. The steady northwest flow around the upper low continues to pump colder air into our region, and highs today will generally be in the mid to upper 30s.
1025 AM EST Wed Mar 7 2018 An active weather pattern continues through the week as rounds of low pressure bring periods of rain, snow, and mixed precipitation. There is a modest upslope component developing, so highest PoPs will focus on the ridges with time. However, the upper level low will cross the area late Thursday afternoon/evening, promising another round of snow areawide.
316 AM MST Wed Mar 7 2018 An upper level ridge will continue to build across the western U. As the ridge slides eastward toward the end of the week, expect a general warming trend to take place with the associated height rises.
Surface analysis this morning places a cold front over East Tennessee, Northern Alabama, and Central Mississippi. This cloud cover is expected to gradually to diminish later this afternoon into tonight as high pressure continues to build into the region. Very cold temperatures are expected tonight ranging from the upper 20s across portions of Northeast Arkansas, the Missouri Bootheel, and West Tennessee near the Tennessee River and temperatures approaching freezing elsewhere.
As a result, dry weather and cooler temperatures will persist through Wednesday night. Upper level ridging will dominate the weather pattern to end the work week. Southerly low level flow beneath the ridging will draw warmer air north into the area.
730 AM EST Wed Mar 7 2018 An active weather pattern continues through the week as rounds of low pressure bring periods of rain, snow, and mixed precipitation. Surface boundary and upper level trough continue to move eastward this afternoon and the atmosphere will dry aloft behind the system. There is a modest upslope component developing, so highest PoPs will focus on the ridges with time. However, the upper level low will cross the area late Thursday afternoon/evening, promising another round of snow areawide.
Meanwhile, temperatures have been held up quite a bit overnight due to the persistent NW wind that continues keep the low levels stirred up and not allow for as much of a temperature drop.
By tonight, wind will shift northerly at less than 10 mph as a weak lee troughing develops to our east.
242 AM PST Wed Mar 7 2018 A ridge aloft will continue fair and mild weather with light winds through Thursday.
This convection will continue to move east and remain south of the CWA this morning as drier air filters into the region and upstream ridging builds east. Temperatures today and Thursday will be slightly cooler than normal with high temperatures each day in the low to mid 70s. Low temperatures tonight will be near normal, ranging from the upper 40s across the northern ranchlands to the low to mid 50s across the Rio Grande Valley.
A plethora of upper lows in the vicinity of the region early this morning. The southernmost one is getting absorbed into the larger scale upper trough, while he northern upper lows will consolidate into one over northern Lake Michigan. This low will linger over the lake and adjacent central Michigan through the day today. With the southern low getting shunted east, a surface cold front across Wisconsin will continue to shift through NE IL and NW IN through the morning hours. It will be rather cool for early March, with highs in the low to mid 30s. The upper low will shift to the eastern Great Lakes tonight, which will further drive cold advection tonight along with several weaker vorticity lobes on the back side.
Cold front sliding southward across the Tampa Bay region with gusty winds and clearing behind it while isolated to scattered showers ahead of the front. Front is exiting the waters today as high pressure builds into the western Gulf with a tightening pressure gradient across the coastal waters.
530 AM CST Wed Mar 7 2018 Quiet aviation weather ahead, with northwest flow aloft and dry air dominating in the lower atmosphere.
Tonight, another PV anomaly, that brought the snow showers yesterday, will drop into the area on the back side of the main upper level trough over the Great Lakes.
Satellite imagery shows cloud cover increasing across NorCal as the closed low that's been parked off the coast the past several days opens up and lifts out toward the PacNW. Current temperatures are running 5-10 degrees warmer compared to 24 hours ago and range from the teens in the mountain valleys to the 40s and lower 50s across the Central Valley and thermal belts. One more dry day with mild temperatures today as the ridge shifts east. Precip chances return tonight and Thursday as the upper trough and trailing front moves ashore. The front weakens quickly as it moves south as upper trough shears to the north with generally light QPF mainly to the north of I-80. Thus the official forecast continues to lean toward the lower end of QPF forecasts.
Some high level clouds associated with a weak upper level short wave trough will move across the region early this morning. The high pressure ridge will remain in place over the coastal plains tonight as the high pressure area moves into southeast Texas. The high pressure area moves to the east on Thursday with easterly winds providing an increase in moisture. A short wave trough will move across the southern Rockies tonight and into central Texas by Thursday afternoon. Moisture will increase in the lower levels from Deep South Texas into the southern parts of the forecast area on Thursday also. Offshore flow has increased again early this morning as high pressure builds into the coastal waters.
Latest guidance came in a degree or two warmer from before, making it more borderline as well to warrant freeze watch or warning at the moment.
Upper level trough is pivoting across the Commonwealth early this morning, bringing a nose of cold air allowing for scattered showers. By daybreak, we should be on the back side of that trough and expect coverage of showers to diminish.
513 AM CST Wed Mar 7 2018 High pressure will become firmly established across the region today with northwest winds around 10 knots this morning increasing to around 10 to 15 knots and gusty from 07/18Z to 08/00Z. Meanwhile, temperatures have been held up quite a bit overnight due to the persistent NW wind that continues keep the low levels stirred up and not allow for as much of a temperature drop.
High pressure will bring warming temperatures through the week with periods of high clouds passing overhead.
Skies have cleared across most of the forecast area, although high cirrus are streaming over the upstream ridge.
High pressure across the region today, which shifts east of the area tonight. As the high shifts east tonight, winds may diminish even more, or go calm for a period overnight before becoming light southwest by daybreak. Breezy southwest winds develop Sunday with temperatures rising into the lower 70s.
1114 AM MDT Sat Apr 22 2017 Upper level analysis has a rex block across the central CONUS with ridging across the Great Basin area. At the surface, weak high pressure is located across the Dakotas. An upper ridge will bring mild weather for the weekend. Upper flow will become southwesterly by Sunday night ahead of the approaching trough, and southwesterly winds will become breezy across south central SD on Sunday.
On the northern end of the entrance side of the jet, an increasingly sheared out closed low is still evident over the St. With sufficient moisture still in place, felt it was prudent to keep measurable QPF/PoPs, and Weather in place until the low and deformation zone are shifted northeast of the WFO PAH forecast area through the early evening.
323 PM EDT Sat Apr 22 2017 An upper level low will drift slowly southeast across the Tennessee Valley tonight into Sunday. This is all associated with an upper level trough/low pressure system that is forecast to sag southeast into the Tennessee valley through tonight. The upper level low will continue to drift slowly southeast into the southeastern United States Sunday through Sunday night. Expect highs on Sunday mainly in the low to possibly mid 60s.
233 PM CDT Sat Apr 22 2017 Cool high pressure continues to build into West Texas this afternoon on breezy northerly winds, with 19Z temperatures only in the 50s and lower 60s.
The northwest to north surface wind flow has brought much cooler temperatures to AR, and highs today will only reach the 50s in the north, 60s central to the 70s over the south.
Rodriguez 247 PM CDT Warm and primarily dry conditions will be in place to start the upcoming week as low pressure lifts from the Dakotas into the Upper Midwest.
Surface ridging also moving into the area, which will cause the winds to come more from the north or northwest through the day on Sunday.
333 PM CDT Sat Apr 22 2017 Cold front moving steadily through central MS and central LA this afternoon with some multicellular developments ahead of the front lacking organization at this time. Some of the activity will diminish in coverage with loss of daytime heating, but nearly all of the convection on the lower end of the frontal zone should remain below severe levels.
657 PM EDT Sat Apr 22 2017 Clouds will continue to shift southeast into the overnight as high pressure and drier air pushes in. High pressure remains in control for Sunday allowing for sunshine and highs between 65 and 70.
Winds begin to increase after 3 AM with lee trough rebuilding, and this may lead to an upward trend in temperatures due to mixing before sunrise. If a freeze were to occur I am thinking south of I-70 closer to the high center where cooler air mass may linger and calm winds may hold. Sunday: Lee trough deepening will lead to windy conditions and good WAA across our CWA.
223 PM EDT Sat Apr 22 2017 Low pressure tracking toward the Southeastern United States will continue to fuel rain chances over the ridges for the start of the new week. The northern trough axis is projected to complete passage across the region tonight and push rain potential southward while cool and dry high pressure supports overnight lows a few degrees under the seasonal averages. This scenario should confine rain chances to the I 68 vicinity, and over the ridges and eastern CWA periphery during the period.
Low pressure currently centered over northern MS will track eastward over the next 24 hrs. Also, look for the upper low to pass directly over Middle Tennessee on Sunday, with plenty of wrap-around moisture and lingering showers and significantly cooler temperatures.
The surface cold front has passed through the southern reaches of the CWA and is now in northern Mexico. We've updated to let the high wind warning for the Guadalupe Mountains expire. /issued 402 AM CDT Sat Apr 22 2017/ Unseasonably cool weather is expected today and Sunday in the wake of a strong cold front, though the break from the heat will be short-lived.
220 PM MDT Sat Apr 22 2017 This morning's 12Z H500 hand analysis had ridging moving into our eastern CWA. This ridge will remain transitory moving over the Rockies into the Plains over the next 24 hours. The best precipitation chances remain north of interstate 70 with the high terrain favored with this first in a series of storms. Again strong ridging over the North Atlantic and Eastern Pacific will carve out a broad and cold trough over the western 2/3 of the CONUS by mid week. The models are really struggling with this pattern change in how energy is dropped into and rotated out of the larger mean trough.
Gusty north winds behind a cold front that moved through last night are also affecting the entire area. The low clouds are expected to scatter out by late morning or early afternoon while the gusty winds are expected to persist through the early evening. /issued 413 AM CDT Sat Apr 22 2017/ (Today and Tonight) Much cooler weather is on tap for today into Sunday morning. A cold front moved through the area last night, and has brought gusty north winds to the entire area.
Clouds will increase from the west this evening, ahead of a vigorous cold front to sweep across the region through Sunday. Rain will be focused along the cold front. Considering that cold front will reach southwest Montana and Lemhi County Idaho Sunday early afternoon, a slight chance of thunderstorms will exist during this time.
However, with an upper ridge moving over the state this evening these showers will end and dry conditions can then be expected over the area overnight. The main concern for tonight is the potential for temps in some areas to get near freezing across portions of the southeast plains. On Sun the upper ridge will shift east of the area as a new upper trof moves over the western states. Dry weather will continue over southeast and south central CO and temps will be warmer.
8h temps will drop into the 4-8C range and temps will struggle to get back into the lower to middle 60s, especially if an overcast is able to stay in place.
The trough of low pressure over the southern Gulf of Mexico will slide eastward across south Florida on Sunday. Lows tonight will be mild in the low to mid 60s across the interior and upper 60s to near 70 for the coastal areas.
Temperatures remained steady in the upper 50s and 60s behind this morning's cold front as cold air advection and persistent low clouds associated with isentropic ascent over the front has easily offset any diurnal warming effects. However, winds tonight will remain around 10 mph to allow for enough mixing to keep low temperatures up in the lower to mid 50s in the Coastal and Rio Grande Plains and mid to upper 40s in the Hill Country. Winds will continue to weaken tomorrow afternoon under sunny skies to set up a beautiful spring day with highs in the lower to mid 70s.
345 PM CDT Sat Apr 22 2017 Mid/upper level low is slowly moving southeastward early this afternoon and will move away from the area tonight. Look for highs mainly in the low 70s along with plentiful sunshine.
1135 AM MDT Sat Apr 22 2017 Latest upper air analysis depicts a closed low over Eastern Kansas. Behind the closed low a ridge was building in from the northwest. Winds may peak in the late morning, then decrease slightly in the early afternoon then increase again in the mid/late afternoon following the trend of the winds in the low level jet. Along with the winds will be warmer temperatures. The breezy south winds will cause lows to be warmer than tonight.
1254 PM CDT Sat Apr 22 2017 Satellite imagery showing an extensive swath of clouds from the Southern Plains up into the Northeastern US behind the cold front. Cooler highs are also expected to the south while the northern half of the state sees some more sunshine.
Temperatures will be quite cool today, but have raised the highs just a bit for most areas. Plenty of dry air, sunshine, and warmer temperatures for Sunday.
/Today through Tonight/ Quiet weather is expected during the short term as high pressure dominates the upper Midwest including Iowa. With the increase in warm advection overnight, anticipate lows to be warmer than current readings by a few degrees despite the clear skies and relatively light winds.
Overnight, moisture advects northward from the Gulf as a cold front approaches from the west. Upper-air analyses showed a ridge over the eastern CONUS and a trough over the central Plains. Although the deep-layer ridge over our forecast area will be breaking down today, the approaching trough will still be too far away for any appreciable Q-G forcing. High temperatures will remain above average, with highs in the lower to mid 80s in FL, and mid to upper 80s in south Al and GA.
High pressure will slide through western Kansas tonight shifting the winds from a northerly direction to a southerly direction. A lee trough will develop tomorrow bringing breezy conditions to much of western Kansas. Lows tonight will generally be around freezing across western Kansas with upper 30s across central and south central Kansas.
Tonight and Sunday The latest rap analysis and satellite/radar imagery show a high pressure ridge axis extending eastward across southern Minnesota and central Wisconsin early this afternoon. To the north, a cold front is dropping south over northern Minnesota. Mostly clear conditions will continue through the evening thanks to the linger effects of the high pressure ridge axis. But the cold front will make inroads into northern Wisconsin late tonight.
Warming Weather Returns Sunday - Active Weather Later Next Clouds and perhaps some patchy drizzle will linger into this evening as an upper low slowly exits to the southeast.
120 PM EDT Sat Apr 22 2017 Aviation A large area of high pressure located in the Upper Plains will track slowly eastward into the Great Lakes Region through the weekend. A weak cold front will try to slip down from the north Sunday night. A better shot for rain arrives for the middle part of the week when a low pressure system tracks in from the southwest. Models are in relative agreement in tracking a high pressure system in from the west through the weekend. A weak backdoor cold front slips down from the north Sunday night.
107 PM EDT Sat Apr 22 2017 Low pressure will track along a stalled front over Tennessee today and tonight. High pressure centered over the northern plains and central Canada will slide east across the Great Lakes early in the week.
/Tonight through Sunday/ Weak upper level low circulation evident by the swirl in the visible satellite data over northwest Missouri. The ridge will continue to progress slowly south/southeast through Sunday and will be over the southeast portion of the state by Sunday afternoon resulting in a switch to southwest winds and warm advection for much of central Iowa.
153 PM MDT Sat Apr 22 2017 Upper analysis shows ridging over the north central and western CONUS. A low-level trough is crossing the Dakotas. Southwesterly winds will increase tonight across south central SD between exiting high pressure and an incoming low, keeping lows in the lower 40s there. This will result in temperatures ranging from the lower 60s across northwestern SD to the mid 70s across the southern and central SD plains.
1213 PM CDT Sat Apr 22 2017 A nice weekend day for outdoor activities today, with early morning cirrus shield over the southeast forecast area shifting further southeast, and upstream cirrus dissipating as it attempts to spill over the upper ridge. This yields high temperatures generally in the mid 60s, with afternoon dew points in the lower-mid 30s. Skies remain mostly clear tonight, with lingering ridge axis across northwest Iowa allowing for a fairly quick temperature drop in the evening. Readings should steady out a little more overnight, though, as the low level ridge shifts farther southeast and stronger low level southwesterly flow begins to develop. Generally looking for lows in the lower 40s, with some upper 30s in parts of northwest Iowa/extreme northeast Nebraska.
High pressure will slide east of the area tonight followed by a disturbance that will bring a weak cold front across northern portions of the CWA Sunday afternoon.
Generally light showers continue to taper off this evening ahead of a short wave that brings a trough onshore Early Sunday morning with an upper level trough over the forecast area.
While locations in the northern 1/3 of our CWA are seeing light winds, the gradient between the high and southern low continues to bring east to northeast winds at 10 to 25 mph to the south half.
Scattered CU clouds have filled in over areas along the coast and are expected to fill in over the Mid to Upper Valley as a cold front approach late this afternoon. Expect MVFR conditions to develop this morning as low level moisture increases ahead of a cold front moving through central Texas. MVFR conditions will develop this evening as moisture pools across the area as the cold front moves through the lower Rio Grande valley tonight.