Aikyam-Lab/Synoptic-Bench huggingface dataset:
THIS EVENING THROUGH TUESDAY NIGHT LARGE UPPER LOW CONTINUES TO DRIFT ACROSS THE CNTRL PLAINS WITH PRECIP WRAPPING AROUND INTO THE DAKOTAS. CENTER OF THE UPPER LOW IS ACROSS SRN WY INTO CO. COOLER AIR REMAINING OVER NE WY INTO PLAINS NORTH OF THE BLKHLS WILL ALLOW PRECIP TO FALL AS MOSTLY SNOW. UPPER LOW WILL DRIFT INTO THE NEB PANHANDLE THROUGH THE DAY TUESDAY.
UPPER LOW TO PERSIST IN WYO REGION OVERNIGHT. GULF GETS CUTOFF AS UPPER LOW BEGINS TO DRIFT ACROSS THE CENTRAL PLAINS.
802 PM EDT MON APR 18 2016 COLD FRONT MOVING THROUGH TONIGHT.
1037 PM EDT MON APR 18 2016 CURRENTLY - A HIGH PRESSURE SYSTEM IS SPREADING SOUTHWARDS INTO THE GULF OF MEXICO AND THE FLORIDA PENINSULA. THE COOLER ORIGINS OF THIS AIR CONTINUES TO PUMP DRY AIR ACROSS THE KEYS. HIGH PRESSURE TO OUR NORTH IS MAINTAINING A TIGHT PRESSURE GRADIENT ACROSS THE AREA.
415 PM MST Wed Feb 15 2017 Upper ridge covers the western CONUS. With high pressure over the northern plains, skies are mostly sunny. The upper ridge will gradually move over the central states, with warm and dry weather continuing, along with mostly sunny skies and west-southwest surface winds.
632 PM EST Wed Feb 15 2017 In the wake of a low pressure system and cold front moving off the Mid-Atlantic coast, a secondary cold front will cross the area tonight.
Dry weather will continue today with the ridge slowly breaking down allowing for clouds to stream across the silver state. The first in a series of low pressure systems will bring unsettled weather beginning Thursday, lasting through the weekend.
545 PM MST Wed Feb 15 2017 Will allow the High Wind Warning for Bordeaux to expire this evening. It will be very warm on Thursday with the models in good agreement w/ H7 temperatures of +6 to +8 deg C, and plenty of sunshine w/strong subsidence beneath a large upper-level ridge.
609 PM EST Wed Feb 15 2017 In the wake of a low pressure system and cold front moving off the Mid-Atlantic coast, a secondary cold front will cross the area tonight.
The San Luis Valley should see temps around to slightly above average with highs in the lower 40s, while the upper Arkansas River Valley should see highs in the 50s. Thu night and Fri a weather disturbance will move acrs MT, WY and nrn CO, and a weak front is expected to move into the area Fri, bringing slightly cooler temps, but still above average in most areas.
/issued 223 PM CST Wed Feb 15 2017/ An upper trough is over the northeast US with a portion of the trough lingering over northern Mexico. Upper ridging will be present over the central US with the previously mentioned lingering trough moving over southwest TX on Thursday.
Winds across the South Plains still under the influence of the anticyclone this evening will gradually back to the southwest by daybreak Thursday then strengthen a bit as surface gradient increases. Expect clear skies overnight to continue through much of the day Thursday before some high level cirrus begins to encroach on West Texas in advance of upper low lifting northeast out of Mexico.
932 PM EST Wed Feb 15 2017 High pressure will build into the region today, with a warming trend into the.
Lake effect snow shower activity will slowly wane late today into tonight as a ridge of high pressure builds east into the region. This trend will accelerate late tonight into Thursday as upper troughing shifts east and H85 temperatures warm substantially, especially to the west over Lake Michigan.
Surface ridging continues to build into the area beneath NW flow and troughing aloft. The pressure gradient remains tighter east of the I-55 corridor, so sustained winds and greater mixing have limited faster cooler so far, however winds are expected to relax in the east as the ridge strengthens across the CWA.
Thus, did use the observed temperature pattern today to adjust the high temperature forecast for Thursday and lower it a bit from the previous forecast.
/issued 355 PM CST Wed Feb 15 2017/ After a seasonable day today, warmer temperatures are expected tomorrow with a return to southerly winds and as a low-level thermal ridge develops across the Southern Plains.
Phenomenal February weather is expected through the entire weekend as an upper level mean ridge of high pressure slowly progresses across the nation's midsection.
522 PM CST Wed Feb 15 2017 Little in the way of cloud cover expected through Thursday, with relatively light southerly flow shifting around to the west later tonight as a warm front moves east across the forecast area. The light winds and clear skies should allow for decent radiational cooling tonight, with lows a few degrees below freezing for most of the area.
If the current forecast pans out for the Houston area, tonight's low temperature at IAH will be the coolest temperature observed so far this month (the lowest through the 14th is 47 degrees on the 10th). Winds will decrease as high pressure slides over the area with some high clouds possibly moving overhead by morning. This quiet/dry weather will be transitioning to a more active/wet one by the end of the week as a series of upper trofs/lows develop and move across from the W.
Winds will decrease as high pressure slides over the area with some high clouds possibly moving overhead by morning. This quiet/dry weather will be transitioning to a more active/wet one by the end of the week as a series of upper trofs/lows develop and move across from the W.
853 PM EST Wed Feb 15 2017 Sfc cold front across northeast FL will continue to push southeast with a narrow band of clouds along it. Cooler and drier air will continue to filter through with lows tonight in the 40s inland and closer to the upper 40s to near 50 near the coast.
836 PM MST Wed Feb 15 2017 Only adjustment tonight was to increase cloud cover a bit for high thin cirrus cresting the upper ridge, and to tweak temperatures for current trends. Expect to see western zones stay a little warmer overnight. Therefore, expect to see highs a few degrees cooler than today. A weak cold front will push through the area Thursday night.
Light winds and a dry air mass will create decent radiational cooling conditions tonight, with over night lows in the low to mid 30s.
An upper level low pressure system has developed over northern Mexico that is expected to draw a gusty morning drainage wind through Santa Fe on Thursday. As a ridge of high pressure slowly builds in from the northwest, temperatures will continue to trend up Thursday.
Winds and waves will gradually subside through the evening as high pressure moves over the area.
/Tonight through Thursday/ Weak warm advection will begin late tonight into Thursday and this will kick off our start to much warmer temps.
Upper air pattern today features a strong closed low rotating northeast through New England, a developing trough off the West Coast, and another closed low drifting east across the Baja.
It will be very warm on Thursday with the models in good agreement w/ H7 temperatures of +6 to +8 deg C, and plenty of sunshine w/strong subsidence beneath a large upper-level ridge.
High pressure will move into the Southern Plains with a ridge axis moving across the Ohio Valley Thursday. For sensible weather, we should drop a little below freezing tonight, with some mid level clouds over the north possibly stopping any falls after midnight. Flow will turn around to southwesterly during the day tomorrow, allowing for a warmup into the 50s for many places, with lows Thursday night about 10 degrees warmer than tonight.
The higher amounts were across southeast Oklahoma where 2-3" of rain fell with the lower amounts near the OK/AR border. High pressure passes to our south overnight. as winds increase in response to low pressure system approaching the high plains.
Upper ridging aloft dominates the region while an upper low slowly progresses east across Texas.
Model analysis and water vapor imagery showed an upper level ridge over California begining to weaken and shift eastward as increasing moisture influx ahead of the next upper level trough moved into the region.
A broad upper trough will follow the front for cooler and somewhat showery weather on Thursday.
coast, and is building a positively tilted ridge downstream over the Great Basin and the Rockies. By Thursday midday the ridge axis will be squarely over Colorado. The main story will be the high temperatures on Thursday. At this time the winds will be weak given the location of the mid-upper level ridge. Denver's record for February 16 is 71 and expect the high temp to tie or possibly break it by a degree or two. 700mb temps also warm another 3-4 degC compared to today, so the mountains will be quite warm tomorrow as well, and should warm into the mid to upper 40s across the high country and upper 50s to low 60s in the foothills.
400 PM MST Wed Feb 15 2017 Large scale ridging is in place across the Intermountain West extending eastward into the Central High Plains. At the surface lee troughing extending across eastern Colorado, with weak SW gradient extending over our CWA.
932 PM CST Wed Feb 15 2017 Good radiation cooling conditions with lgt winds and clear skies may yield the presence of patchy frost across mainly portions of the area where overnight temps fall into the lower to middle 30s.
Expect to see western zones stay a little warmer overnight. Therefore, expect to see highs a few degrees cooler than today. A weak cold front will push through the area Thursday night.
Low pressure in the Desert Southwest will slowly work its way across the Southern Plains, and be be approaching the Quad State by the week's end. Until then, we'll be sandwhiched between the backside of a long wave trof riding along the Eastern U. and surface to upper high pressure in the High Plains.
Northwesterly winds behind the departed cold front has brought cooler and drier air southward today.
High pressure aloft will maintain dry and mild conditions across the region through this evening.
625 PM EST Wed Feb 15 2017 In the wake of a low pressure system and cold front moving off the Mid-Atlantic coast, a secondary cold front will cross the area tonight.
Although the lower clouds will be gone, mid-upper clouds will continue to push into the area from the NW. Dry weather is expected on Thursday as high pressure builds into the Great Lakes. Thursday Night Through Wednesday Expect dry and much warmer than normal conditions to prevail through the weekend.
A drying and warming trend is forecast through Thursday as high pressure moves into the region.
A large, dominant upper level ridge will keep winds light and skies clear tonight, and while a few models have hinted at a bit of fog development across and east of the James Valley, have left it out of the forecast for the time being. The track/timing of the wave and associated low pressure system still varies rather significantly between the Canadian, ECMWF and GFS deterministic runs and thus have low confidence in POPS/QPF. Winds will be weak, but also shifting to a westerly component with weak cold advection in the wake of the low.
Pattern Forecast: Rising heights in the coming days as upstream ridge builds eastward into the Great Lakes.
The only exceptions to this will be near large bodies of water, such as the TN river and Lake Guntersville -- where temps may stay a few degrees above freezing.
The combination of ground temperatures below zero and a mixture of rain and freezing rain has led to slick/icy roadways this evening across the valleys of far northwest Montana. There is a slight chance of light freezing rain or drizzle tonight, mainly affecting KMSO and potentially KGPI, but downsloping will limit the amount of precipitation that reaches the ground.
848 PM CST Wed Feb 15 2017 The latest surface analysis indicates weak high pressure from the Southern Plains northeast thru the lower Great Lakes this evening. High pressure will continue to dominate Central Illinois and much of the Midwest through the overnight hours. Very little in the way of cloud cover, and light variable winds under the ridge axis. Overnight, the ridge slips eastward and winds become more southerly. Morning upper air and moisture channel imagery shows main upper trough from eastern Great Lakes into KY/TN.
High pressure should briefly control the region Thursday afternoon into the evening.
Meanwhile, a weak cold front is draped from northwest Collier County southwestward to about 30 miles northwest of Dry tortugas and southwestward north of the Yucatan channel. A mid and upper level disturbance along with a weak cold front in the extreme Southeast Gulf of Mexico will move eastward and through our entire county warning area overnight. The combination of the low level confluence and ascent aloft will result in scattered showers and patches of rain, before diminishing to isolated showers toward morning.
As it does, winds will become light and SW as the ridge passes. Still, with very low dewpoints, have trended aob the cooler guidance for tonight. For Thurs, a wrmfnt is expected to lift nwd thru the area bringing much warmer temps and gusty SW winds. With deeper mixing expected, just above 900mb, have trended aoa the warmer guidance. Overall, believe much of the 2m dewpoints from mdls are too high and have trended aob the cooler guidance.
639 PM EST Wed Feb 15 2017 Aviation a ridge of high pressure will move over the state tonight. We'll see snow showers begin to diminish as drier and warmer air aloft arrive.
513 PM CST Wed Feb 15 2017 High pressure will continue to dominate Central Illinois and much of the Midwest through the overnight hours. Very little in the way of cloud cover, and light variable winds under the ridge axis. Overnight, the ridge slips eastward and winds become more southerly. Morning upper air and moisture channel imagery shows main upper trough from eastern Great Lakes into KY/TN.
Large scale ridging is in place across the Intermountain West extending eastward into the Central High Plains. At the surface lee troughing extending across eastern Colorado, with weak SW gradient extending over our CWA.
Scattered mid to high level moisture continues to move into our area from the eastern Pacific as an upper level low pressure system travels between Baja California and the state of Sonora, Mexico.
656 PM EST Wed Feb 15 2017 Northwest flow as a result of a low pressure system on the East Coast will continue overnight tonight, but winds will change to more southerly Thursday as high pressure moves into the region with drier air.
The passage of this cold front will begin to bring somewhat drier and cooler air in from the northwest overnight. this is not a strong cold front. and not dropping out of the lower 609s down toward the Fort Myers area. The cooler temps through Tampa Bay and the Nature Coast will in part derive from the NW flow off the cooler Nature Coast shelf waters. Elevated wind and seas continue with a cold frontal passage in progress across the eastern Gulf. Winds will remain out of the NW and north through Thursday and continue to diminish as high pressure builds over the region by late in the day.
604 PM EST Wed Feb 15 2017 Low pressure will move off the coast tonight as high pressure then builds back into the region.
Deep upper level trough was located across the Great Lakes region keeping the low stratus across lower MI and into the upper OH valley, under the cyclonic flow. This along with a very dry airmass and light to calm winds will allow temperatures to drop to the chilly levels, due to a weak ridge of high pressure over the area. Lows should range from the lower to mid 20s north to around 30 in our far southern cwa. Afternoon highs should range from the mid 40s at Freeport, IL to the lower 60s at Memphis, MO.
1024 PM EST Wed Feb 15 2017 Forecast is on track this evening as high pressure builds in across the area. Chattanooga Airport, TN 31 56 36 64 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 28 53 33 61 / 0 0 0 0 Oak Ridge, TN 29 53 34 60 / 0 0 0 0 Tri Cities Airport, TN 26 50 28 60 / 0 0 0 0.
VFR conditions will persist through the forecast period as high pressure builds into the area. Clear skies and light winds overnight will be favorable for radiational cooling across the region, and lows can be expected to fall into the lower to mid 40s tonight. Conditions will warm slightly more on Thursday with the return of onshore flow, and highs will warm into the mid to upper 60s along the coast to the lowers 70s inland. Temperatures will continue on a warming trend into Thursday night, with lows staying in the lower to mid 50s overnight.
914 PM CST Wed Feb 15 2017 Wx map shows high pressure continuing to settle over the region, with winds diminished to less than 5 mph south of the I-10 corridor, calm elsewhere.
The cooler temps will be short-lived with 1000-850 mb warm advection already increasing across western Minnesota/Iowa.
634 PM EST Wed Feb 15 2017 High pressure will build into the region today, with a warming trend into the.
Dry and warm conditons are forecast through Thursday as high pressure peaks over the region.
High pressure is settling across the region and winds are dropping off. Lows will drop into the upper 20s to around freezing across the Mid-South by morning.
Lows tonight again several degrees above normal, in the lower 30s.
/issued 400 AM CST Sat Feb 4 2017/ High pressure is ridging down into the forecast area from the Ohio Valley area to a stalled out front over the middle Gulf of Mexico. Northeast flow from the high is bringing cool conditions with readings in the mid 30s across Central Louisiana to low to mid 40s elsewhere. Rua The cool high pressure system will move off to the east during the day and set up along the Mid-Atlantic States. However, as winds become more southerly, the old stalled frontal boundary over the Gulf, will move back north and across the forecast area tonight as a warm front.
At the surface, dry and weak frontal boundary sinking over the C FL Peninsula this morning with dry high pressure over the Eastern U. This front will more or less dissipate today but high pressure will build in behind it for the weekend keeping the area void of any rain chances. Because of this, highs will range from the low to mid 60s up north with temps near 80 down south. with continental high pressure moving off the southeast coast.
1012 AM EST Sat Feb 4 2017 Cold high pressure will build across the region through Sunday.
With increasing cloud cover moving over the fa tonight (decreasing radiational cooling) counter- balancing winds becoming light (enhancing radiational cooling) over the fa, temps warmer than the previous night are expected.
SHORT TERM (Now through Sunday): The latest surface analysis shows a stationary front across the Lower Texas coastal waters and the southeast corner of the inland portion of the BRO CWFA. Precipitation becomes isolated this evening, and ends after midnight, as the front and trough combination fade and an onshore flow resumes.
Some light snow will continue for the higher terrain of the Park and Gore Ranges through Sunday but minimal accumulations expected.
638 AM EST Sat Feb 4 2017 Cold high pressure will build into the forecast area from the northwest tonight and dominate Saturday.
918 AM EST Sat Feb 4 2017 High pressure centered over the Ohio Valley will move off the Mid Atlantic Coast tonight. Low pressure will track across the Upper Great Lakes Sunday. A warm front will move northeast across the area Sunday. A weak cold front will follow from the northwest late Sunday and Sunday night.
The low temperature for Saturday morning is expected to be near the midnight readings, with temperatures steady or slowly climbing through sunrise, as temperatures at 850 mb climb quickly. Expect SW winds to remain gusty for a couple hours after sunrise this morning, but rapidly weaken after 9 AM as the low level jet dissolves and the pressure gradient rapidly weakens.
A low pressure system will track just north of our forecast area, reaching western Lake Superior this evening. There is an abundance of mid and upper level moisture, but not in the lower levels, at least south of the low pressure system. Models are in good agreement about upper ridging late tonight, and with the low pressure off to our northeast, cooler temps will arrive.
High pressure over the Ohio valley will move on to the east coast by late tonight. A weak area of low pressure over the northern plains will move across the northern great lakes Sunday. Another low pressure system will move into the Central Plains Sunday.
805 AM EST Sat Feb 4 2017 High pressure will cross the region today then move east tonight.
355 AM MST Sat Feb 4 2017 Forecast soundings are indicating the potential for freezing drizzle tonight across the western SD plains. For now have changed patchy fog to areas of freezing fog, and expanded the area and timing.
It is likely many places especially across the Snake Plain and southern mountain valleys will not (or barely) drop to freezing overnight.
Currently, air temperatures in most Keys island communities are in the lower 70s, with dewpoint temperatures in the lower 60s. A large high pressure cell over the eastern United States will migrate eastward through tonight.
Rip Currents: Elevated risk in the high range for NE FL coast and moderate risk for SE GA coast due to strong northeast flow.
The 7 am regional surface analysis showed a large area of high pressure across much of the Southeast, behind a weak cold front across central FL.
943 AM EST Sat Feb 4 2017 High pressure will cross the region today then move east tonight.
526 AM CST Sat Feb 4 2017 High pressure sliding east of the area today will bring winds around from the south and bring temperatures up into the lower to middle 40s. Airmass behind this front won't be any cooler, in fact highs on Sunday will rise even warmer into the upper 40s and lower 50s.
High temps today continue to be difficult, as the cold front that lifted north overnight, will slide south through the day. The upper ridge builds back up some for Sunday. with upper trof off the Pacific Northwest coast sends energy over the ridge into southern Canada. Expect the development of lee troffing at the surface, resulting in increasing winds at Livingston and Nye.
This will allow for RH values to rebound and help keep fire danger in check and help offset gusty south-southwest winds and warmer temperatures.
The remainder of the day will feature high pressure transitioning to the Carolinas with wedge building in across the local area. Continued cold conditions will take many mountain locations below freezing early in the overnight period. Temps will be increasing as the rain approaches but looking increasingly likely that pockets in the valleys of Towns and Union may see some very light accumulations of Freezing Rain.
616 AM EST Sat Feb 4 2017 Dry conditions are expected through the weekend with temperatures climbing into the upper 20s to around 30 today and above freezing Sunday.
a warm front along the Gulf Coast will begin to move northward and should be oriented west to east along the I-20 corridor by 18z Sun. we begin to look west as an upper trough moves out of the Desert Southwest and into the Plains. isentropic lift with increasing southwesterly flow in the lower levels.
Forecast remains on track with high pressure overhead. Cold Canadian high pressure crests overhead this morning and slides eastward this afternoon.
Surface ridging will keep winds generally light, and less than 10kts.
With a southerly flow, lows will be warmer - into the upper 30s and around 40.
/issued 319 AM CST Sat Feb 4 2017/ Flat upper ridge stretch across the country this morning.
/issued 402 AM CST Sat Feb 4 2017/ SHORT TERM (Now through Sunday): The latest surface analysis shows a stationary front across the Lower Texas coastal waters and the southeast corner of the inland portion of the BRO CWFA. Precipitation becomes isolated this evening, and ends after midnight, as the front and trough combination fade and an onshore flow resumes.