Aikyam-Lab/Synoptic-Bench huggingface dataset:
145 PM CST Wed Jan 31 2018 145 PM CST One cold front is clearing the CWA early this afternoon, with a Pacific origin air mass over the area this afternoon allowing for seasonably mild temps. The bottom will drop out early Thursday morning as Arctic cold front blasts through the area resulting in nearly steady or slowly falling temps in its wake on Thursday.
255 PM EST Wed Jan 31 2018 As a cold front slowly approaches, occasional light rain and snow can be anticipated, through Thursday evening.
Strong northwest winds with gusts to 35 kts in the wake of the Arctic cold front will subside with sunset. Arctic high pressure will build across western and central North Dakota tonight through Thursday.
951 AM MST Wed Jan 31 2018 Flow becomes more northwesterly across eastern Utah and western Colorado today as a high pressure ridge builds off the West Coast while the trough over the central U. As mentioned in previous discussions, this pattern shift will allow a cold front to drop southward across northeast Utah and northwest Colorado. Temperatures across the north will be a bit cooler behind the cold front today, but will still be well above seasonal norms despite the influx of cooler air.
241 PM EST Wed Jan 31 2018 High pressure off the Southeast Coast will dominate through Thursday.
A stronger cold front, currently across the Great Lakes region into the Northern Plains, will move thru the region Thurs morning. With the low levels forecast to be dry, even flurries may struggle. Have trended aob the cooler guidance for Thurs. The area will be under nwly flow aloft as the ern trof continues to move out with another trof entering nrn portions of the U. These low PoPs continue thru Sun until the cdfnt pushes south of the CWA with the upper trof possibly supporting additional snow as it moves thru the region. Tilly A weak cold front will push south through the region today. Winds may then back slightly overnight as the weak front pushes south and ahead of the stronger cold front.
A tight baroclinic zone will set up today as a second cold front swings through.
Temperatures have reached freezing in a few locations as of this hour, but won't remain so long enough to pose any threat to pipes. The aforementioned cirrus will continue to stream across the area through much of the day while closer to the surface, southerly winds will allow for steadily increasing dewpoints and afternoon highs a bit warmer than we saw yesterday.
217 PM EST Wed Jan 31 2018 High pressure along the east coast moves offshore tonight. Low pressure moving into northeast Canada will move a cold front across our area Thursday night.
1126 AM CST Wed Jan 31 2018 Next several days are mainly a temperature forecast as a cold front pushes harmlessly through the forecast area later this morning.
An upper ridge over the Pacific will be a quasi- permanent feature during the next 7 days. Northwest California will generally reside beneath northwest flow aloft along the east side of the ridge. In addition, large-scale subsidence forced by the ridge combined with a residually humid boundary layer will aid in patchy valley fog.
Cold front is moving southeast through the area, and as expected, the winds are relaxing somewhat ahead of the front as the pressure gradient decreases.
1256 PM EST Wed Jan 31 2018 High pressure over the Mid Atlantic region will move off the coast tonight.
The theta-e lapse rates are not very good, rather stable, through the event and the lower layers start out dry. There will be several chances for precipitation as weak upper level short wave troughs move across the forecast area. Since these short wave troughs are moving quickly through, am not expecting much precipitation with them.
Upper ridging near 130 W extends inland over California as weak embedded waves and associated high clouds move through the forecast area.
Issued by National Weather Service CHARLESTON SC 330 PM EST Wed Jan 31 2018 High pressure will move offshore tonight through Thursday.
357 PM CST Wed Jan 31 2018 The cold front that moved across northwestern and west central Oklahoma this morning has become nearly stationary this afternoon.
314 PM CST Wed Jan 31 2018 It has been a warm and breezy day, but winds will diminish this evening and temperatures will be a little cooler tomorrow behind a cold front that sweeps through most of the area during the morning hours. Behind the front, winds will become northerly and highs will only reach the lower 60s along the Red River to the lower 70s in the southern zones. Lows will drop below freezing in the northwestern zones but only reach the mid 40s across the south.
A cold front will move through the Ohio Valley tomorrow. Temperatures this period will continue warmer tonight, with readings likely staying in the 40s. Highs tomorrow will depend on exact timing of the frontal passage, but should be in the low 50s along our border with TN and lower to mid 40s in southern IN.
Temperatures are noticeably cooler than yesterday, behind last night's cold front, but are still above par for the last day of January. Despite the cirrus and a diminishing NE breeze, expect most locations to achieve the lower 50s this afternoon. Several cold front passages will occur, with wind shifts and temperature flucuations, but with moisture lacking they will all be dry.
A cold front will be pushing across central Texas overnight and expected to move across south central Texas midday on Thursday.
450 PM EST Wed Jan 31 2018 High pressure along the southeast coast is departing the region, and a cold front situated north TX to Lake Michigan late this afternoon is approaching from the northwest. South to southwest winds ahead of the front are carrying a milder air mass into the region, but the warmer conditions will be short-lived. The coldest valleys in the eastern part of the area will likely decouple from the low level flow, while broader and shallower valleys in the western part of the area remain mixed and milder.
Gusty southwesterly winds ahead of a cold front will provide unseasonably mild temperatures despite the considerable cloud cover. Southerly winds continue to gust up to 30 mph in some areas early this morning, and this has helped keep temperatures fairly steady in the lower 30s. The cold front associated with low pressure in western Ontario will move into our area around midday to early afternoon, but little impact is expected initially. The second cold front, ushering in the next Arctic air mass, will begin moving through the forecast area Thursday morning.
244 PM CST Wed Jan 31 2018 (Tonight and Thursday) Very warm conditions will continue across West Central Texas this afternoon, with temperatures in the low to mid 70s. The cold front has progressed south into the Panhandle this afternoon, although not making quite as quick a progress as we were thinking a few days ago. Relatively mild again tonight, with lows in the low to mid 40s for most locations. A little cooler on Thursday, with highs behind the front across the Panhandle in the upper 50s and lower 60s. Farther south where the front will pass during the day, highs will be a little warmer.
155 PM EST Wed Jan 31 2018 High pressure over the Mid Atlantic region will move off the coast tonight.
Good low level frontogenesis response from the passing Arctic cold front later tonight into early Thursday morning will provide decent upward vertical motion.
331 PM CST Wed Jan 31 2018 A few high clouds are streaming across north MS this afternoon but the air mass remains dry in the low-levels. Benign weather conditions are expected tonight, but a cold front will move across the CWA late tonight and early Thursday. Rain chances will increase throughout the day, primarily along and behind the cold front.
1104 AM CST Wed Jan 31 2018 VFR with gusty W winds initially at LBB and PVW, trending lighter later this afternoon ahead of a backdoor cold front tonight.
After some evaporative cooling, temperatures in the boundary layer have stabilized above the freezing mark (34-38 degree range), with a layer around 1000 ft deep above the surface keeping precipitation in the form of liquid. By the late afternoon hours, we'll watch a cold front begin to surge southward out of North Dakota. The best chances for measurable precipitation will be in the Buffalo Ridge areas, but RH plots show deep enough saturation for sprinkles or flurries all the way to I-90. This is mostly due to the deepening of a large trough over the eastern two thirds of the CONUS centered over Hudson's Bay.
A surface cold front traversed the CWA through the morning hours and now resides across far southeastern KS. Little CAA behind the front has allowed temperatures to reach the low 50s this afternoon.
High pressure over the western states will result in dry weather and well above average temperatures through the coming week. No significant changes to the forecast this morning as the ridge of high pressure continues to build over the western US. Current upper-air and satellite analysis reveals a ridge of high pressure currently located off the coast of California, with a long wave trough across the central and eastern United States. High pressure will remain stationary along the California coast for the next several days.
Tonight, the broad trough over the central CONUS will gradually sink southward, bringing a punch of colder air. Late tonight into Thursday morning, models indicate a band of frontogenesis developing across southwest Nebraska and northwest Kansas associated with the trough moving southward.
319 PM CST Wed Jan 31 2018 Dry and breezy westerly flow to the south of a cold front slowly advancing through the southern plains has resulted in near-record temperatures across our forecast area this afternoon.
359 PM EST Wed Jan 31 2018 A cold front will cross the Ohio Valley on Thursday.
930 AM PST Wed Jan 31 2018 Strong high pressure aloft will remain anchored over the eastern Pacific for the foreseeable future.
1158 AM CST Wed Jan 31 2018 Early this morning, a cold front was progressing eastward across Iowa/Minnesota. The mild temps will be short-lived as a secondary cold front quickly swings through tonight with the true push of Arctic air. Boundary layer wind fields will gradually relax through the day with the approach of high pressure, but winds will stay breezy through the day with 20-30 kts of flow in the mixed boundary layer.
Although the breeziest and driest conditions are not overlapping at their maximum, there is enough overlap that combined with ERC (Energy Release Component) values to justify a Red Flag Warning for areas ahead of the cold front. Cold front is moving southeast through the area, and as expected, the winds are relaxing somewhat ahead of the front as the pressure gradient decreases.
A cold front will be on approach Thursday, arriving in the northern zones around the noontime hour and exiting the CWA to the south by Thursday evening.
1253 PM EST Wed Jan 31 2018 A cold front crosses Thursday, bringing rain. As high pressure moves off to the east today, a decent southwesterly wind flow will develop. With these winds, will go toward the warmer side of MOS guidance for highs. Winds will continue tonight as clouds increase in advance of an approaching cold front. With the clouds and wind, will go toward the warmer side of MOS guidance for overnight lows. The mean longwave trof will amplify yet again into the region with an associated cold front slated for Thursday evening.
(Tonight) Issued by WFO Birmingham, AL at 330 PM CST Wed Jan 31 2018 Southerly flow will persist tonight ahead of a developing cold front to the northwest. 87/Grantham Issued by WFO Birmingham, AL at 330 PM CST Wed Jan 31 2018 Moisture will continue to increase on Thursday as a cold front approaches.
Issued by National Weather Service HASTINGS NE 1140 AM CST Wed Jan 31 2018 Models in better agreement today in the near term with cold air advection continuing behind a cold front that moved through early this morning. Lows tonight in the low teens north to around 20 south.
1112 AM EST Wed Jan 31 2018 High pressure along the east coast moves offshore tonight. Low pressure moving into northeast Canada will move a cold front across our area Thursday night.
High pressure ridge will be to the Northeast Tonight, and to the East Thursday. A cold front will approach from the Northwest late in the day Thursday. Temperatures are expected to be a little warmer Tonight than this morning, with readings above normal for Thursday.
935 PM EST Sun Nov 26 2017 At 02Z a long ridge of high pressure had one center between Greenville and Vicksburg, MS, and another between Nashville and Bowling Green. With this ridge in place, skies are clear and winds light. High pressure centered over Arkansas this afternoon will work its way east through the short term period to the mid-Atlantic coast. As it does so, winds will shift to southerly across the lower Ohio Valley, ushering in milder air.
Very strong southwest winds will develop Monday as a cold front moves through the area.
Aside for the low risk of BR/cigs early Monday morning, VFR will prevail. /issued 244 PM CST Sun Nov 26 2017/ Upper heights will remain largely unchanged through Monday, even as an upper ridge traverses the region complete with milder thicknesses. This bodes well for wildfire concerns over all but our extreme W-NW counties where the lowest relative humidities in the upper teens are likely.
702 PM EST Sun Nov 26 2017 Cool and dry high pressure will build over the region and persist into midweek.
705 PM EST Sun Nov 26 2017 Dry high pressure will build over the area tonight into the middle of the week.
Northwest flow aloft continues, with high pressure extending from Manitoba down into our CWA. The high has had some low clouds trapped underneath it, and there has been more low clouds across the northern CWA than originally expected. There is good warm air advection occuring for much of the day, with 925mb temps getting into the low teens C. The north should see the low stratus move off into Canada during the morning, but the approaching trough axis will bring in more clouds from the west. Will continue to keep the low POPs we have going for our northern counties, but amounts will be minimal.
Expect the increased mixing to keep overnight lows a bit warmer, especially in western portions of the forecast area.
717 PM EST Sun Nov 26 2017 High pressure will push across region providing for dry conditions into the middle of the work week.
721 PM EST Sun Nov 26 2017 Aviation A couple of cold fronts will move across the state this week and each one will bring a chance of rain.
/ISSUED 307 PM CST Sun Nov 26 2017/ Mainly dry weather should continue next several days as a few cold fronts cross the area but with limited moisture to work with. Continued mostly sunny and dry conditions are on tap for Monday with ridge of high pressure over the area.
The cold front has begun to push into the area, and is bringing a strong push of wind with it, with gusts to around 45 mph noted in Baker, OR.
826 PM CST Sun Nov 26 2017 A little bit warmer tonight with forecast lows in the 40s under mostly clear skies.
Cool high pressure is right nearby at KMLU/KVKS will keep calm or vrb03kt tonight and expect a return flow out of the S/SE Monday as air mass moves Eastward.
743 PM EST Sun Nov 26 2017 Upper trough will linger over the Gulf of Mexico for the next couple of days as a weak boundary moves through the area overnight and high pressure builds in at the surface. This will turn N/NE winds to the E/NE through mid-week as the high center shifts east. High pressure will build into the area for Monday, and winds and seas will increase a bit for the next couple of days, with an evening easterly wind surge to near cautionary levels for a few hours.
1013 PM EST Sun Nov 26 2017 A mid-upper level trough axis reaches south-southwest through the Gulf of Mexico into the Bay of Campeche. Temperatures are in the lower 70s with dewpoints in the mid 60s. The best/only chances will be across the Straits of Florida where warmer waters will give parcels enough of a nudge over the low level inhibition to work on the thin, yet deep sliver of CAPE available in the column. From synopsis, high pressure over the southeastern United States will be reinforced tonight and Monday as an area of low pressure to our west moves away from the Florida Keys.
837 PM MST Sun Nov 26 2017 Upper level ridge axis will be shifting across Colorado tonight as the flow aloft will be shifting a bit more west and southwest later tonight and Monday. The upper level ridge axis over the state will gradually shift east tonight, with an increasing west/southwesterly flow aloft through the day on Monday. Gusts in the 60 mph range will be possible above timberline and exposed eastern slopes, with gusts of 40 to 50 mph in the higher foothills. Although high level cloudiness is expected to increase ahead of the next approaching storm system, none of the models generate any qpf in the high country until Monday night.
Fair weather will continue, with ridge valley temperature differences noted tonight and again Monday night.
High pressure will build from the Northwest then North Tonight. Models depict a weak coastal trough developing in the flow along the NE FL coast late Tonight. This trough is expected to result in an increase in moisture, especially along the NE FL coast, yielding the potential for cloud cover.
546 PM EST Sun Nov 26 2017 High pressure will lead to dry weather and a warming trend through the early part of the week. High pressure continues to dominate as it slowly shifts across the Appalachians to our south.
918 PM CST Sun Nov 26 2017 Temperatures continue to bounce around in the low to mid 40s this evening as rather thick cirrus moves through the area. Some breaks/thinning later tonight should allow temperatures to fall into the low 30s by daybreak Monday.
456 PM CST Sun Nov 26 2017 A ridge over the western 2/3 of the CONUS exists with an exiting trough over the eastern 1/3. The ridge will move east with the approaching system from located from British Columbia into the Pacific Northwest. The next trough is still on track to move onshore tonight and move east with a position over the Rockies on late tonight.
An upper level trough axis will continue to stretch across our area southwestward into the Gulf through tonight.
no changes to the forecast is needed as high pressure dominates the region's weather.
The clouds have complicated the temperature forecast, keeping us cooler than initially expected. Clouds will continue to increase overnight and into Monday morning as an upper level ridge axis currently located over eastern Montana, slides east over western and central North Dakota. As was the case today, cloud cover could keep things a bit cooler. Strongest winds will come behind the cold front in the west by Monday afternoon. By Monday night, we transition back into northwest flow aloft as the trough keeps chugging east and ridging once again builds over over the western US. A second push of breezy to windy conditions will affect our northern counties overnight on Monday, driven by cold air advection and the approach of an elevated cold front sagging south from Canada.
Warm air advection returns in earnest on Monday as upper ridge builds a bit stronger. Increasing southwest winds should provide a warming regime that could make another run at high temperature records for the area, but some of this will depend on how much cloud cover tops ridge /lots upstream at moment/ and whether strong inversion holds full mixing potential back, even with breezy southwest winds. Sinusoidal wave pattern will mean passing wave with ridge return every day or so.
1031 PM EST Sun Nov 26 2017 Cool and dry high pressure will build over the region and persist into midweek.
419 PM MST Sun Nov 26 2017 Upper level ridge continues to build across the northern Rockies into the northern plains. Upper ridge shifts eastward tonight, with low level thermal ridge located across the forecast area. Upper trof crosses the northern plains Monday, with cold front dropping through forecast area.
Beautiful precipitation suppressing high pressure and dry advection is keeping weather conditions rather quiet at mid evening across the Southern Appalachian region.
Winds will be light/variable through tonight with high pressure overhead.
536 PM EST Sun Nov 26 2017 High pressure centered over Arkansas this afternoon will work its way east through the short term period to the mid-Atlantic coast. As it does so, winds will shift to southerly across the lower Ohio Valley, ushering in milder air.
A cold front will march through the area, causing temperatures to drop to near normal levels - meaning highs in the 40s to low 50s for many locations in the forecast area.
428 PM MST Sun Nov 26 2017 It was another mild afternoon across eastern Utah and western Colorado today as a strong, dirty ridge of high pressure remained situated overhead. The ridge axis will be shifted to the east on Monday as a closed Pacific low digs into the southwestern CONUS. This will allow for some breezy conditions ahead of an approaching cold front during the afternoon hours, especially in northwest Colorado where gusts could exceed 30mph in the valleys and 50mph in the higher elevations. The aforementioned Pacific trough looks to just barely hold on to its cutoff low as it moves into the Four Corners region Monday evening.
1001 PM EST Sun Nov 26 2017 Dry high pressure will build over the area tonight into the middle of the week.
738 PM EST Sun Nov 26 2017 High pressure over central NC will continue to bring dry conditions and seasonal to slightly above normal temperatures to the area for the rest of the weekend through the early portions of the week. Crystal clear day over central NC this afternoon as high pressure is building in from the southwest. These will recover after dark but in the meantime RHs in many locations are bone dry in the lower 20s. Expect lows near freezing. High pressure moves directly overhead on Monday and mid-level flow becomes more zonal allowing a warming trend to commence. This will bring high temperatures up into the low 60s in most locations as skies once again are expected to remain clear.
548 PM CST Sun Nov 26 2017 High pressure currently over the region this afternoon, will begin to shift east of the Ozarks tonight.
520 PM EST Sun Nov 26 2017 A weak low pressure system will cross the region tonight.
Conditions ended up being a little warmer and breezier than expected today, given the dry airmass and deeper mixing. A broad ridge of high pressure centered over Baja California and troughing over the eastern CONUS will keep the ArkLaMiss region beneath dry northwest flow aloft through tomorrow. This should allow for winds to go calm and temperatures to bottom out around freezing around portions of the area tonight.
1017 PM EST Sun Nov 26 2017 High pressure will push across region providing for dry conditions into the middle of the work week.
Chose to leave the High Wind Watch for the Little Rockies tomorrow as is for now. A trough of low pressure approaching from the Rockies will kick out the ridge of high pressure in place currently. The most impactful phenomenon tomorrow will be the winds in the wake of the passing cold front. The rest of the region should expect generally 20-30 mph winds with gusts to the low 40s in some areas, especially where terrain funneling is likely. The downward trend in temperatures to more normal values for the season is still expected, and the roller coaster of trough followed by ridge followed by trough is still expected.
For Monday expect even warmer temperatures with numerous records likely to fall. Winds begin the morning from the southwest at 5 to 15 mph but increase during the day ahead of a cold front. The transition to cooler temperatures across the Central High Plains Region begins Monday night. becomes more progressive as an upper trough moves east of the Rockies and into the high plains region along with a cold front that sweeps across the forecast area after midnight Monday night.
616 PM EST Sun Nov 26 2017 High pressure across the region will move off to the southeast. Southerly flow on the back side of the high will bring mild and dry conditions through mid week.