Aikyam-Lab/Synoptic-Bench huggingface dataset:
330 AM CDT Mon Oct 24 2016 Temperatures are quite a bit warmer this morning than we have seen the past couple of days. A weak cold front will move across the region today. but largely go unnoticed as the airmass behind the front is only slightly cooler than what is currently in place. Over the next few days a broad ridge will shift from over the Plains, approaching the Mississippi river Valley late Tuesday.
353 AM EDT Mon Oct 24 2016 A cold front is bringing lower temperatures back to the area. Light rain showers diminishing quickly along a cold front dropping in from the north. Strong northwest flow behind the front will quickly advect cooler air in from the north. With cooler air pouring over the warm waters of Lake Erie, limited production of lake-enhanced showers is expected into the afternoon.
339 AM CDT Mon Oct 24 2016 Weak, moisture-starved cold front now making its way into the forecast area will continue to push southeast across the region this morning and should be south into TN before noon. The main features in the short term portion of the forecast remain the mid lvl short wave and associated cold frontal passage Wed/Wed night.
359 AM EDT Mon Oct 24 2016 A dry cold front currently just north of the Ohio river this morning, will work south across the area today. Either way, cold front will lack any cloud cover, so with the sun coming up this morning, we will quickly warm just ahead of the front reaching the mid 60s to around 70 in most places today. With drier and cooler air settling in behind the front tonight, lows will be much cooler with some mid 30s showing up in the deeper valleys of eastern Kentucky. We could be a degree or two cooler just because we will be starting off the day much cooler.
With high pressure over the region, the weather remains quiet. Only thing that may keep temps up just a tad is the higher dewpoints/higher low level moisture over the area. High pressure will move off to the east on Monday, with increasing southeast winds through the day. Will then be watching precipitation move into the region on Tuesday as low pressure ejects into the central Plains.
253 AM CDT Mon Oct 24 2016 High pressure ridge builds in over the central conus resulting in a modest rebound in temps on Tuesday. Expect TSRA then to develop along lifting warm front within llvl theta-E convg zone.
A gradual warming and drying trend will begin midweek as high pressure aloft strengthens across the Great Basin.
Highs today will be cooler than yesterday thanks to the cooler flow from the north, with temperatures topping out in the upper 60s and low 70s. Tuesday and Tuesday night, An upper trough embedded within the southern branch of the jet stream will lift northeast across the southwestern US into the central plains Tuesday night. Ahead of the upper trough southerly low-level flow will advect deeper gulf moisture northward across eastern KS through the day on Tuesday. Scattered showers and thunderstorms will develop along the surface front across west central KS as stronger ascent shifts east ahead of the H5 trough and surface convergence provides enough lift for thunderstorm development.
High temperatures will climb into the low 80s this afternoon under mainly high clouds. The main concern for today will be the low Rh's this afternoon. High pressure will continue into tonight, with slightly warmer overnight lows in the mid/upper 40s.
Meanwhile, at upper levels a strong ridge was established over the Rockies. This upper level ridge axis is forecast to move east into the Dakotas tonight. Bufkit soundings indicate that the low level jet remains strong tonight and possibly continues to mix out at the surface at times, but noted that a low level inversion develops and may keep the higher winds aloft from mixing.
There is still the potential of a light to briefly moderate east wind below the lower gaps of central mt chain into the central valleys, including KABQ vicinity, with any gusts likely staying near to below 25KT.
538 AM EDT Mon Oct 24 2016 A cold front and potent disturbance aloft will pass through tonight and early Monday bringing a cold rain to the northern half of the state. Temps will be cooler and in the 40-45F range for overnight lows across the north where the steadier rain falls (and cfropa occurs earlier), while mins in the south will be mainly in the upper 40s. High pressure stays to the W thru the short- term and the tight pres grad will keep it breezy. The flow lasts into Mon Night, and the temps get cold enough then to get a mix or plain ol' --sn for precip type in the higher elevation of the nrn mtns. CAA comes to an end on Wed as weak progressive upper ridge moves through as low-level flow turns back to the S/SW.
Models indicating low level moisture is fairly high with temps/dewpoints in the lower 30s/upper 20s. Models indicating low level moisture is fairly high with temps/dewpoints in the lower 30s/upper 20s.
1141 PM MDT Sun Oct 23 2016 A broad ridge just east of the forecast area will continue sliding east as a large trough spins off the Pacific Northwest coast. This flow and the trough will draw subtropical moisture north through Arizona and into Utah and by late Monday afternoon this moisture will spread into eastern Utah. Overnight the next big ridge begins to build west of the forecast area.
An upper disturbance moves over the Lower Mississippi River Valley and the fa, weakening as it moves through and east of an upper ridge stretching north over the Plains. The upper ridge slowly shifts east, building as it moves, and bringing increased subsidence to the forecast. Temps today moderate a bit upward from yesterday, ranging from the low to mid 80s. With subsidence from the advancing upper system weakening the ridge over western portions of the fa, warmest temps today are expected to be over eastern portions of the area. Overnight temps see the affects of the increased subsidence, along with slightly increased cloud cover tonight to bring temps warmer than last night, but below seasonal due to the dry airmass.
With an upper level trough situated just offshore of the west coast, the Northern Rockies will continue to be under southwest flow with middle to upper clouds streaming northward. A weak disturbance will move across the Northern Rockies today and will bring a few showers mainly to the higher terrain, especially across the Clearwater Mountains and portions of southern Lemhi County Idaho.
357 AM CDT MON OCT 24 2016 Another quiet night as high pressure remains in control of the regional weather pattern. The NWS radars are indicating light rain falling in south central Texas as an upper level trof is tracking to the northeast around the ridge. Plenty of sunshine will allow temperatures to climb into the lower 80s. The ridge aloft is expected to hold through the rest of the week.
A second wave right on the heels of the first will track in more from the west this evening, bringing higher Pacific moisture into the high country and thus a better chance for rain and high elevation snow showers this evening through the overnight hours.
The positioning of the ridge is currently giving the area a NE surface gradient. ridge moving into the Central Plains will continue to shift south and east of the CWA overnight. The result will be above normal temps bringing highs into the lower to mid 70s.
High pressure ridging will continue for the most part across the northern Rockies through Tuesday. A large upper low off the Pacific northwest coast will provide a southwest flow aloft across southern Montana today. Temperatures will remain above normal with readings in the lower to middle 60s for most areas today with middle to upper 60s expected on Tuesday.
340 AM EDT MON OCT 24 2016 A dry cold front will move across central North Carolina today. High pressure will then build over the area tonight and remain through the mid-week period. A cold front over the Ohio Valley ATTM will drop SE early this morning and uneventfully move across central NC during the mid-day or afternoon hours. For tonight, high pressure will begin building into our area from the NW in the wake of the front. Clear skies and cool temps with lows in the lower to mid 40s. High pressure and dry conditions will provide fair weather during this time. Highs in the mid 60s and lows in the lower 40s.
310 AM EDT MON OCT 24 2016 A dry cold front will move across central North Carolina today. High pressure will then build over the area tonight and remain through the mid-week period. A cold front over the Ohio Valley ATTM will drop SE early this morning and uneventfully move across central NC during the mid-day or afternoon hours. For tonight, high pressure will begin building into our area from the NW in the wake of the front. Clear skies and cool temps with lows in the lower to mid 40s. High pressure and dry conditions will provide fair weather during this time. Highs in the mid 60s and lows in the lower 40s.
temperatures today should still end up a few degrees warmer than yesterday. Winds will also increase across the higher elevations ahead of the system. and with lee troffing should see enhanced westerly drainage flow develop after midnight. Best chance for measure precipitation will stay along the Continental Divide overnight where 1-3 inches of snow accumulation across the higher peaks will be possible.
Temperatures will continue to climb a couple of degrees each day with highs this afternoon mostly in the lower 80s and then lower to middle 80s on Tuesday.
241 AM CDT Mon Oct 24 2016 Current observations show a weak cold front is located in the South Plains between Lubbock and Amarillo, unfortunately it will not make much progress today and will remain north of our CWA.
Highs today will be in the low to mid 80s across most of the forecast area, with upper 70s to low 80s across the southern counties where mid level cloud cover will increase this afternoon. Extensive cloud cover overnight will help to keep temperatures relatively mild, mainly in the low to mid 60s.
A mid level trough along the Rio Grande will move across Texas today. Showers and occasional thunderstorms have continued into early this morning across eastern parts of South Central Texas due to upward forcing and diffluence on a seasonably moist airmass ahead of the trough. The showers and occasional storms will move off to east in the next few hours ending as the trough axis passes by. In its wake, a slightly drier airmass moves in as an upper level ridge begins building into areas along the Rio Grande.
311 AM CDT Mon Oct 24 2016 Early this morning a very weak cold frontal boundary was positioned along the I70 corridor in central Missouri. Today will be a tad cooler than yesterday, especially across the eastern Ozarks as a very slightly cooler air mass filters in from the north. The bulk of "cooler" air should remain across the mid Mississippi River and Ohio River Valleys as the Canadian high drops south and east across the Great Lakes and into the Mid Atlantic. Although cooler temperatures are forecast, we did go a degree or two above guidance in the short term because of the recent cool bias among short term models. An upper level ridge remains in place across the plains. Overnight, southerly flow will keep temperatures warmer, especially across southeast Kansas.
620 AM EDT Mon Oct 24 2016 A frontal boundary tracking southward across the Ohio Valley will bring cooler conditions to the region today.
Temperatures a bit cooler today, and could be even colder than forecast if fog does become widespread and lasts longer than expected.
149 AM EDT Mon Oct 24 2016 A departing low pressure across eastern Quebec will allow for continued clearing this evening, along with diminishing wind speeds. A secondary trough moving into the region from the northwest late Monday into Monday night will bring a chance of light rain showers, with snow showers possible across the northern Adirondacks and northern Green Mountains.
Passage of a backdoor cold front by this evening will bring northerly surface winds and reinforce the dry low-levels. Aloft, ridge of high pressure continues to contribute to the dry deep layer northwesterly flow with PWs across the area stuck in the 0. this dry air mass will allow afternoon RH values to dip into the low 30's across much of the East Tennessee Valley.
There won't be much of an effect from this front other than to drop the high and low a few degrees on Tuesday.
There are a few observation sites reporting -ra where the highest reflectivities are located, but vast majority is in the form of virga complements of dry llvls. Should see a trof move eastward from the Rockies into the plains and midwest Tue and Wed. It should be a non-factor in our local wx, but ridge will expand north and eastward out of Mexico and into Tx in its wake. This ridge should be the dominant player in area wx (or lack thereof) from midweek thru the weekend by limiting overall rain chances. 47 With high pressure lingering just to our east, we should continue to see generally light (to occasionally moderate) east (to occasionally southeast) winds across the coastal waters the next several days.
246 AM EDT Mon Oct 24 2016 High pressure will dominate again Today and this will continue our stretch of sunny skies and low humidity levels. We leaned on the warmer side of guidance for max temps and we favored the lower side of guidance for min temps. The period begins with an upper level trough over the northeastern conus and over the western Atlantic, upper ridge over the middle of the country, and an upper trough pushing into the Pacific Northwest.
Mid level flow turns more westerly and some cold advection as well late tonight so precipitation will be fairly widespread in the high country. In the meantime, temperatures will remain quite mild today with upper ridge axis and thermal ridge shifting slowly east across the region. The period of heaviest precipitation appears like it will be at the beginning of the trough passage Monday evening, so rain or snowfall amounts should be pretty light during Tuesday. After this disturbance passes, strong ridging will re-build over the state, bringing warmer temperatures and dry weather back to the region through the end of the week.
With little in the way of mixing, temperatures will max out right around seasonal normals, with readings in the low to mid 50s this afternoon.
High pressure is expected to remain across the area for the next couple of days.
High pressure northeast of our area will slide to the east with weak lee troughing forming tomorrow. With the warm air advection and downslope, Tuesday highs will be warmer - 80s. The highest pops are still forecast in the eastern zones. Weak upper ridging will continue over the region today, lending to clear skies and VFR conditions again.
344 AM EDT Mon Oct 24 2016 A frontal boundary tracking southward across the Ohio Valley will bring cooler conditions to the region today.
This trough will weaken and lift back north on monday.
546 AM CDT Mon Oct 24 2016 Quiet conditions reign across the region early this morning, with upper air data showing northwesterly flow in place, as a ridge axis extends through the Rockies. At the surface, winds are light, thanks to high pressure building in from the north. Models remain in good agreement showing this upper level ridge axis gradually sliding east with time, keeping things dry across the CWA. A slightly cooler airmass in place is expected to keep afternoon high temperatures in the 60s across the CWA. The overall pattern is an upper level ridge over the plains.
306 AM MST MON OCT 24 2016 A low pressure system northwest of the region continues to draw a considerable amount of subtropical moisture into the Desert Southwest. Drier and warmer conditions will return by the middle of the week. As other previous shifts have done, we have again trimmed PoPs some with mostly slight chances remaining over the lower deserts and low end chances over higher terrain areas. Low level moisture will remain over most of Arizona into Tuesday which may give rise to a few showers or maybe a thunderstorm over the higher terrain of east-central Arizona. Flow aloft turns out of the northwest as upper level ridging pushes northward out of Mexico.
331 AM CDT MON OCT 24 2016 Quiet and much cooler weather conditions expected across central and southeast Illinois through the period.
Winds will be light tonight, but southerly flow should bring in some slightly warmer and moist air. /issued 400 PM CDT Sun Oct 23 2016/ Tonight through Monday afternoon, Ridging aloft continues to build across the Lower Mississippi River Valley, while high pressure at the surface slides east of the forecast area. As far as temperatures are concerned, moisture subtly increasing during the period will result in slightly warmer conditions compared to the previous couple of days. With some high clouds again streaming east overhead, lows tonight will be a little warmer as they'll range from the mid 40s to lower 50s. Then for Monday afternoon, highs will top out in the lower 80s areawide.
149 AM EDT Mon Oct 24 2016 As of 130AM: Forecast is on track with high pressure overhead leading to calm and cool conditions tonight. Northwest upper flow relaxes through the period but remains sufficient to push a re-enforcing cold front through by late in the day Monday.
/issued 241 AM CDT Mon Oct 24 2016/ Current observations show a weak cold front is located in the South Plains between Lubbock and Amarillo, unfortunately it will not make much progress today and will remain north of our CWA.
High pressure will be recirculating cooler air from the east northeast through the day with highs in the lower 60s north central to the low 70s over the panhandle and southwest Nebraska.
345 AM EDT Mon Oct 24 2016 A dry cold front currently just north of the Ohio river this morning, will work south across the area today. Either way, cold front will lack any cloud cover, so with the sun coming up this morning, we will quickly warm just ahead of the front reaching the mid 60s to around 70 in most places today. With drier and cooler air settling in behind the front tonight, lows will be much cooler with some mid 30s showing up in the deeper valleys of eastern Kentucky. We could be a degree or two cooler just because we will be starting off the day much cooler.
315 AM EDT MON OCT 24 2016 Temperatures on the colder/below normal side for the work week as large and deep upper level low currently over Quebec is slow to exit. As such, looking at highs in the lower 50s, supported by 925 mb temps up around 5 C as well. Northwest confluent upper level flow this evening leading to strong subsidence and short lived warming at the 850 mb level, which should scour out the daytime cloud cover, setting us up for a favorable radiating night with temperatures falling toward freezing.
623 AM EDT MON OCT 24 2016 A dry cold front will move across central North Carolina today. High pressure will then build over the area tonight and remain through the mid-week period. A cold front over the Ohio Valley ATTM will drop SE this morning and uneventfully move across central NC during the mid-day or afternoon hours. For tonight, high pressure will begin building into our area from the NW in the wake of the front. Clear skies and cool temps with lows in the lower to mid 40s. High pressure and dry conditions will provide fair weather during this time. Highs in the mid 60s and lows in the lower 40s.
424 AM MDT Mon Oct 24 2016 As mentioned in previous discussions, the ridge which brought warm, dry weather to the area over the past several days has shifted to the east. The change in pattern was driven by a trough off the West Coast which continued to track toward land during the night. Increased clouds will result in slightly cooler temperatures as southwest flow aloft continues to bring mild air to the region. Though afternoon highs will be a bit cooler than those forecast for today, readings are still expected to peak around 5 degrees above seasonal norms. Overnight the next big ridge begins to build west of the forecast area.
648 AM EDT Mon Oct 24 2016 Backdoor cold front drops across the area this afternoon bringing a NW to N wind shift with speeds remain less than 10 knots at all terminals.
Temperatures on the colder/below normal side for the work week as large and deep upper level low currently over Quebec is slow to exit. As such, looking at highs in the lower 50s, supported by 925 mb temps up around 5 C as well. Northwest confluent upper level flow this evening leading to strong subsidence and short lived warming at the 850 mb level, which should scour out the daytime cloud cover, setting us up for a favorable radiating night with temperatures falling toward freezing.
Expect the daytime highs today and early this week to reach back into the lower 80s as the cool airmass over the region has moderated a bit.
320 AM CDT Mon Oct 24 2016 Quiet conditions reign across the region early this morning, with upper air data showing northwesterly flow in place, as a ridge axis extends through the Rockies. At the surface, winds are light, thanks to high pressure building in from the north. Models remain in good agreement showing this upper level ridge axis gradually sliding east with time, keeping things dry across the CWA. A slightly cooler airmass in place is expected to keep afternoon high temperatures in the 60s across the CWA. The overall pattern is an upper level ridge over the plains.
Temperatures will be noticeably cooler in the wake of yesterday's cold frontal passage with afternoon highs in the lower to mid 50s.
628 AM EDT Mon Oct 24 2016 A cold front is bringing lower temperatures back to the area. Made small adjustments to cloud cover and POPs as a cold front completes it's passage this morning. Strong northwest flow behind the front will quickly advect cooler air in from the north. With cooler air pouring over the warm waters of Lake Erie, limited production of lake-enhanced showers is expected into the afternoon.
145 AM EDT Mon Oct 24 2016 Weak, moisture-starved cold front crosses during the early morning, with gusty winds in the mountains and possibly an isolated shower. High pressure mid week. Still anticipating a weak cold front to cross during the overnight and early morning hours as low pressure ejects from the Great Lakes eastward toward the Atlantic. Continued mixing in the absence of BL decoupling will keep min temps warmer than last night for most locations.
A large area of high pressure is centered over the DELMARVA Peninsula. Another area of high pressure is stretching from northern Saskatchewan to central Texas. The high pressure to our north will remain in control for the short term. The gradient around the ridge will strengthen as the first of the lows mentioned above moves northeast through New England and the Canadian Maritimes through Saturday night. As the trough exits to the northeast, the ridge currently over the Central Plains will move eastward and merge with the high pressure currently over the DELMARVA, as it sides over the Atlantic.
High pressure centered near the mid-Atlantic coast will bring light easterly flow and an increase in low level moisture to the area tonight. Overnight lows are expected to range from the low to mid 50s inland to upper 50s along the coast.
A weak cold front over the northern plains will move across Indiana early Saturday. This will be followed by a weak area of high pressure late Saturday.
A weakening upper level trough will slowly shear out as it moves across the Plains and Texas in the short term.
711 PM EST Fri Dec 23 2016 A partly cloudy night expected across the area with overnight temperatures about 5 degrees warmer compared to what we say this morning. The Nature Coast has the highest likelihood for fog development but patchy fog will be possible area wide.
The parent low over Ontario has a cold front spread across far northwestern MN and across the northern half of SD. The main concerns this period will be fog nearing ABR from the west, and light freezing precipitation Saturday night. Expect a better chance of fog overnight, behind the cold front.