Aikyam-Lab/Synoptic-Bench huggingface dataset:
303 AM PDT SUN JUL 10 2016 Unseasonably strong low pressure pushes into the Pacific Northwest and Intermountain West today for well below average temperatures and breezy conditions.
Today Through Monday Night Troughing will continue in the southeast United States today, with a weak stationary front draped across northeast Arkansas. Ridging will continue across the southern Plains and southwest states. The ridge will amplify farther east on Monday, including locally.
An unseasonable strong low pressure system tracks across Oregon into Idaho today, bringing strong gusty winds this afternoon and early evening. Cool temperatures tonight may bring patchy frost to the higher valleys. Cold core upper low travels across Oregon today and moves across Idaho this evening, but the far southern portion of this cold core does move across the Santa Rosas and Jarbidge wilderness area. Patchy frost is likely, maybe freezing temperatures around Wildhorse and Mountain City. Quieter day on Monday with a flat ridge progressing across the Intermountain West.
426 AM CDT SUN JUL 10 2016 Upper level low drifting across the Tennessee Valley through the next couple of days will continue to provide just enough lift to set off scattered to numerous showers and thunderstorms across central Alabama.
A short wave trough will extend SWWD from the Tennessee Valley into the Mississippi Valley on Sunday with the western extension of the sub-tropical ridge across the Florida Peninsula. The short wave is forecast to weaken on Monday with the sub-tropical ridge expanding westward to the central Gulf. Afternoon highs will be in the lower to mid 90s west to the mid and upper 90s far east with heat indices generally ranging from 99 to 106F.
431 AM EDT SUN JUL 10 2016 Looks like it could be an interesting wx day across the area given the presence of mid level trough axis from the Tennessee Valley through the lower Mississippi Valley. Disturbed pattern continues through Monday as mid and upper level low remain in place to the west of the area and frontal boundary meanders northward. Deese Rain chances through the extended are expected to be near climatological or slightly higher as weakness in mid-level ridge persists through the week.
Remain stuck between exiting high pressure across WI and nearing low pressure over MT/WY and the far western Dakotas.
440 AM CDT SUN JUL 10 2016 Upper level ridge building across New Mexico and the Panhandles. At the surface, the pattern the next few days will resemble more of a spring-like pattern with leeside troughing and gusty south to southwesterly winds. But high temperatures, thanks to an 850mb thermal ridge will definitely feel like summer. As the lee trough strengthens today, downslope westerly winds are expected to remain mostly over New Mexico and keep our high temperatures from skyrocketing too high, though widespread low to mid 100s over the west seems pretty likely. The 850mb thermal ridge accompanies this as well, so expect temperatures to remain in the low to mid 100s with very low RH values across the western half of the Panhandles. behind the upper low moving into the Northern Plains.
213 AM EDT SUN JUL 10 2016 Dry and pleasant weather arrives today with high pressure over the region. Warmer and more humid as we head through the work week. Fog development is looking more likely in the valleys tonight and into Monday morning as boundary layer winds will be much weaker with the high pressure sitting right overhead. High pressure in control to start the period.
An upper level trough is moving through bringing cool temperatures and keeping winds up a bit overnight. This morning is already quite cool, with temperatures at 2 am 5 to 10 degrees cooler than this time yesterday. Afternoon highs should be a little cooler than yesterday, though ridging this afternoon should limit this generally to a few degrees less.
However, the break in precip will be only a few hours for southwest MT as the initial push of showers from the broad low pressure system we've been advertising for several days begins to arrive around 3 am and gradually spread northward by sunrise. Strong upper level low along the Pacific Northwest coast will move onshore tonight then continues eastward to the Northern Rockies by Sunday. Not many changes have been made to the overall forecast trend of the last few days, although models have trended snow levels higher and Monday afternoon temperatures warmer than they were expected to be earlier this week.
SHORT TERM (Now through Monday): Latest water-vapor imagery shows a 500mb high centered over northern Mexico into southern New Mexico with the ridge extending towards Deep South Texas. Otherwise, hot and generally rain-free conditions will prevail across Deep South Texas and the Rio Grande Valley through the forecast period courtesy of mid-level ridging.
333 AM MDT SUN JUL 10 2016 An upper level low will move across the Pacific Northwest today and into the Northern Rockies tonight. Meanwhile the ridge over the region will shift eastward today. Expect highs to be a couple degrees warmer today due to the stronger downslope winds. high temperatures and low RH values over the high terrain. The upper level closed low over Montana with a trough that will move over the Northern portions of the state bringing increased winds to the region for Monday afternoon and evening. It will however bring gusty winds to the higher terrain and foothills with gusts in the 30-40 range by Monday afternoon and evening.
235 AM CDT SUN JUL 10 2016 Convection was noticeably reduced yesterday and this trend will continue through the end of the week as an upper level high moves over the area. The past several days the high center was displaced to the south and west allowing weak disturbances and strong daytime heating to cause storms to form. Now the high center is much closer to the CWA shoving any disturbances to our north and increasing a mid level inversion that will cap any bouyant upward motion. The high will not be moving anywhere the next seven days allowing for a very persistent pattern in regards to both PoPs and temps with highs not varying by more than a few degrees this forecast period.
317 AM EDT SUN JUL 10 2016 Mid level northwesterly flow along the periphery of building upper ridging will linger across the region today. Moderating thermal profile as upper heights begin to rise will bring highs largely within the lower 80s this afternoon. Solid warming trend on track for the early week period, the response maximized as the aforementioned upper ridge pivots through and the low level gradient eventually turns southwesterly.
311 AM MDT SUN JUL 10 2016 Current surface map places weak cold front/outflow boundaryacross northeast Wyoming into western South Dakota. Water vapor shows upper ridge located over the dakotas. as strong upper trof moves into the northwestern U. Jet streak rotates through base of upper trof and lifts through western Wyoming into Montana. Upper low track across Montana into northwest North Dakota on Monday with dry and windy conditions expected across the forecast area.
552 AM CDT SUN JUL 10 2016 Today is expected to be even warmer than yesterday with the upper ridge still located over the plains, but with stronger southerly sfc winds. This will be a hot wind as high temperatures climb into the lower and mid 90s across south central Nebraska, with mid to upper 90s expected over north central Kansas. A rather significant upper low for this time of year will be tracking across the northern rockies today into tonight. Should storms form and track into our area or develop over our area on the low level jet, can not rule out the possibility of a storm or two briefly being strong to severe. An upper level wave and cold front are expected to move through the forecast area Monday and Monday night.
236 AM EDT SUN JUL 10 2016 Dry and pleasant weather arrives today with high pressure over the region. Warmer and more humid as we head through the work week.
341 AM EDT SUN JUL 10 2016 High pressure over the region today will transition to the east over the next few days. Highs should reach the lower 80s across the fa today. H5 ridge builds east into the region on Monday. This ridge will provide dry weather with a warming trend.
200 AM EDT SUN JUL 10 2016 High pressure over southern Canada will drop south over the northern Great Lakes tonight and eventually move across Ohio on Monday.
645 AM EDT SUN JUL 10 2016 Today will be cooler with lingering scattered rain showers mainly in central New York.
Water vapor imagery shows a short wave trough from southeast Oklahoma southwest to the northern Hill Country to the Texas Big Bend. This short wave trough will move southeast today and be located from east Texas southwest to the Coastal Bend this afternoon. Most of the high resolution mesoscale models are not showing any convection forming over south Texas with the exception of the 00z SPC 4km WRF-NMM.
149 AM EDT SUN JUL 10 2016 High pressure will continue to build into the region, bringing drier air and slightly cooler temperatures. NNW winds will be light as high pressure ridge nudges in from the northwest. Under weak cold air advection, lows will range from upper 50s to lower 60s, coolest across our northwest which will be closer to the high pressure center.
More hot and muggy weather with scattered afternoon storms along the sea breeze is again expected on Sunday with high temperatures again climbing into the lower 90s along the coast, and mid 90s inland.
450 AM EDT SUN JUL 10 2016 Low pressure will cross the region today then exit across the maritimes tonight.
156 AM EDT SUN JUL 10 2016 Scattered thunderstorms, mainly east of Interstate 81, will gradually exit this evening with the passage of a cold front. The weather will turn cooler for Sunday with scattered rain showers lingering mainly in Central New York.
As the large low pressure system moves through our area today, widespread precipitation with embedded thunderstorms are expected due to high moisture availability. The exception will be far northwest Montana where precipitation will be limited due to the low's track.
423 AM EDT Sun Jul 10 2016 Periods of rain showers with isolated thunderstorms continue today as the upper level low slowly progresses across the area.
236 AM EDT SUN JUL 10 2016 Scattered thunderstorms, mainly east of Interstate 81, will gradually exit this evening with the passage of a cold front. The weather will turn cooler for Sunday with scattered rain showers lingering mainly in Central New York.
348 AM CDT SUN JUL 10 2016 A return to a drier weather pattern will begin today as an upper ridge builds back over the area.
Cold front will be propagating through the region. Environment again favorable for significant severe weather once storms do develop along the cold front (most likley along and east of the valley).
High pressure was stretching from the Dakotas down into IA, with low pressure across KS/MO. But by tonight, a short wave trough currently over the Pacific Northwest will be quickly moving toward ND. All models are pointing toward a rather strong warm front developing from southwest MN into eastern IA. The higher risk for any severe weather does appear to be over northeast IA and southwest WI overnight into early Wednesday. By daybreak, the low level jet and much of the main thermodynamic support will be shifting east. But the aforementioned short wave trough will be moving through northern MN Tuesday afternoon, which should fuel renewed development.
1238 PM EDT TUE JUN 21 2016 A cold front will move through through the region Today. A secondary cold front will approach late tonight and cross the region Wednesday.
Streamline analysis and 12z 500 mb height chart showed inverted trof extending from far w-central Sonora MX to southeast AZ. After two extreme temperature record setting days, today will be cooler. The upper high centered near the 4-corners region today will shift east into southern plains on Wednesday.
/issued 1008 AM CDT TUE JUN 21 2016/ Typical summertime day expected across the region today, with high temps reaching into the low to mid 90s areawide and isold to scattered diurnal convection possible.
The subsidence is quite apparent in water vapor imagery and model soundings above 600mb as is the low level moisture surge of 2" PW. /ISSUED / A deep layer high pressure ridge over the Southern Plains will slowly drift eastward over the remainder of the week.
718 AM EDT TUE JUN 21 2016 Water vapor imagery and RAP analysis show a deep trof dominating much of eastern Canada into the Great Lakes region.
647 AM CDT TUE JUN 21 2016 Convection continues to develop across parts of eastern Nebraska, southwest IA and northwest MO in a zone of 850 mb moisture convergence on the nose of a southwesterly low level jet, and also along the western extent of a cold front that has become stationary and along an outflow boundary from earlier convection. Should have slightly cooler high temperatures behind the front across northeast MO and west central IL, but also further south as well due to cloud cover and precipitation.
/Issued 426 AM CDT TUE JUN 21 2016/ Upper level ridge centered across the Four Corners region continues to dominate the short term forecast. As the ridge starts to deamplify and shift eastward tonight and Wednesday, upper level flow becomes light and more westerly. Thermal ridge axis at 850mb also moves east, and high temperatures on Wednesday will be reminiscent of last week's heat as highs reach the low 100s across a majority of the Panhandles.
Weak ridging will build over the region today for a return to dry conditions.
An upper level low and troughing persists over the western Atlantic just east of the mid Atlantic region. Subtropical ridging continues to ridge west over the Bahamas and Florida. Farther west, a broad area of upper level ridging extends from California to the Mississippi River valley. On the surface, high pressure near Bermuda ridges westward over the southeast U.
1023 AM EDT TUE JUN 21 2016 A pleasant morning this morning with some drier air in place under high pressure. High pressure will be in place through the end of the week keeping generally easterly flow in place.
Strong high pressure across northern Arizona will lead to hot conditions on Tuesday. which is bringing clouds which keeps the daytime highs a few degrees cooler.
No precipitation is expected through the next 24 hours with high pressure in the middle layers of the atmosphere in control. In the wake of this now-defunct system, 500 mb high pressure centered over the Four Corners region will re- center over the Gulf Coast states, all the while remaining dominant over Deep South Texas and the Rio Grande Valley. Dry weather will prevail across the BRO CWFA due to the proximity and oppressiveness of this high throughout the short term forecast period.
630 AM CDT TUE JUN 21 2016 The latest surface analysis depicts a cold front extending from Cleveland to St Louis and on into central MO using winds and pressure to determine location. The Pennyrile region will have the highest risk of severe with that area in slight risk of severe.
Warmer conditions are expected across the ArkLaMiss today as the region gradually comes under more influence of the mid/upper level ridge centered to our west, and high pressure at the surface sits near the forecast area. Otherwise, look for mostly sunny skies today as highs warm into the low and middle 90s. A trend toward drier and warmer conditions will continue as we head into the middle of the week. A stout mid/upper ridge currently centered over the southern High Plains will build eastward into the Deep South over the next couple days.
Upper-level flow will become north-northwesterly today as the broad upper-level ridge over the Four Corners region continues to expand eastward. Height rises will be in place across the area on Wednesday as the broad upper-level ridge continue to expand eastward across the southern US. Convection should continue to be suppressed due to the dry air mass in place and the presence of warm air aloft associated with the ridge.
1041 AM EDT Tue Jun 21 2016 A weak ridge of high pressure will be over the north country today with mostly sunny skies and cooler temperatures. Expecting a mostly sunny day today along with cooler temperatures. The overnight lows will continue to drop into the low to mid 60s but with high 50 low 60 dewpoints it will still feel somewhat muggy by North Country standards.
Morning soundings do show enough moisture in the low levels, below 6500 feet, for cumulus development and perhaps a few light showers.
/Issued 333 AM EDT TUE JUN 21 2016/ High pressure aloft will begin to erode on the eastern side.
High pressure over the Eastern pacific will maintain moderate to locally strong northwest winds across the coastal waters through the week. Similar to the past few days, very warm readings can be expected for inland locations as a strong ridge of high pressure (598 DM at 500 MB) centered over the Four Corners Region keeps the storm track well to our north.
High pressure remains in place over central AL/MS extending east into southern/central Georgia. A weak cold front further north extends from near Maryland southwest into the southern tip of Illinois.
715 AM EDT TUE JUN 21 2016 Aviation High pressure will bring fair weather today and tonight. A warm front moving in on Wednesday will signal the chance for thunderstorms during the afternoon and evening. There is some spread in the models on how far north the sfc warm front reaches, with the ECMWF remaining further south than the GFS and NAM.
1032 AM EDT TUE JUN 21 2016 A cold front will press slowly to the Maryland border through the afternoon.
Strong upper high centered over the southern Rockies this morning. On Wednesday, upper high will move east and will be centered over the arklatex region.
/Issued 223 AM CDT TUE JUN 21 2016/ A mid level ridge will maintain hot and dry weather the next couple days.
1051 AM EDT TUE JUN 21 2016 A cold front will drop south of the Ohio River today. The front is forecast to lift back north on Wednesday as a warm front ahead of low pressure developing to the west. Severe weather is expected Wednesday afternoon into Wednesday night when the low will be tracking across northern Illinois and Indiana to Lake Erie.
1044 AM CDT TUE JUN 21 2016 15z/10am surface analysis shows cold front settling southward toward the Ohio River.
429 AM PDT TUE JUN 21 2016 A warming trend will continue today as high pressure strengthens over the region. A strong mid/upper level ridge of high pressure centered near the Four Corners region is bringing a spell of very hot temperatures to our area.
1031 AM EDT TUE JUN 21 2016 A cold front will press slowly to the Maryland border thro8ugh the afternoon.
Morning clouds over the Umpqua valley should keep max temperatures cooler than surrounding areas for this afternoon.
/ISSUED / A deep layer high pressure ridge over the Southern Plains will slowly drift eastward over the remainder of the week.
A stout upper level ridge of high pressure has built across much of the United States, and is centered near the Four Corners region and spans from roughly the California coast eastward to the lower Mississippi Valley. This ridge will remain the dominant driver of local weather conditions through Wednesday, with above normal temperatures expected throughout the interior valleys. High temperatures tomorrow and Wednesday can be expected to reach the low to mid 90s across these interior areas, with more seasonable temperatures in the 60s expected in coastal areas that remain under the influence of a persistent marine layer. - however, only small changes in the marine layer depth through Wednesday will likely mean that temperatures will remain similar to, if not slightly warmer than, yesterdays values.
/issued 408 AM CDT TUE JUN 21 2016/ Weather maps show a very large deep layer ridge dominating much of the CONUS from California to the southern Appalachians. To get an idea how strong this ridge is from a climate perspective. the highest geo-potential heights in the ridge axis (595 to 600 deca- meters) over the Desert Southwest and southern Plains stands at roughly 2 to 3 standard deviations above the mean. a broadening high pressure area becomes aligned across the Central Gulf Coast. The eastern flank of the deep layer ridge sets up over the local area in the near term. A mix of sun and clouds are forecast into the afternoon as higher level moisture from decaying convection over the Ohio River Valley spreads southward around the upper ridge.
/issued 246 AM CDT TUE JUN 21 2016/ Blow off mid to high clouds from convection occurring across Missouri with a back door cold front will continue to spread across the Mid-South over the next couple of hours. If the clouds hang on a good part of the day, it could keep highs a tad cooler as well as limit any pop up diurnal convection. Expect the best chance for rain will occur across portions of West Tennessee this afternoon from convection that develops ahead of the approaching back door cold front. The front will make it as far south as Western Kentucky this evening before lifting back to the north as the upper ridge strengthens over the Mid-South. The ridge also should be strong enough to prevent any diurnal convection from developing.
A weakening upper low moving by to our north this morning has already pushed a cold front through the region. Highs will be 10-15 degrees cooler than yesterday. Dry cold front has passed through most of our CWA tonight as evidenced by a wind shift to the west. Expect sunny, breezy, and cooler post-frontal weather today as the supporting upper trough swings eastward across northern Idaho. Flat ridging followed by southwesterly flow aloft tonight and Wednesday will bring several degrees warming again Wednesday before the next upper trough from the Gulf of Alaska nears the northwest coast.
947 AM EDT TUE JUN 21 2016 A cold front over the eastern Great Lakes will move through the Mid Atlantic states this afternoon and evening. High pressure will pass to the north Wednesday.
842 AM EDT TUE JUN 21 2016 A cold front will move through through the region Today. A secondary cold front will approach late tonight and cross the region Wednesday.
923 AM EDT TUE JUN 21 2016 Weak high pressure will build east over the area through Wednesday.
Forecast challenge for this short term forecast period will be timing of convection in western zones this evening as an inverted trough moves into the western Dakotas. An upper ridge will remain over central ND until at least 00Z, and begin to shift east in the late evening and overnight period. Plenty solar expected today however weak flow in the west and NW flow in the valley on east will keep conditions similar today, with cooler temps in the 70s and afternoon cu expected. upper low associated with aforementioned wave entering NW Oregon will move into SW Saskatchewan by 06Z. Double barrel low in elongated area of troughing moves into Ern ND and MN. Expect scattered showers and general thunder across majority of CWA as this low crosses, with best QPF amounts across the north.
A weak and dry cold front will cross northern Utah today.
Chattanooga Airport, TN 90 71 92 71 / 30 20 30 10 Knoxville McGhee Tyson Airport, TN 86 69 88 70 / 50 40 30 20 Oak Ridge, TN 86 69 88 71 / 60 30 30 20 Tri Cities Airport, TN 83 66 84 65 / 60 60 50 30.
941 AM EDT TUE JUN 21 2016 Dry airmass remains in place today with high pressure at the surface and aloft.
At the surface, a low pressure system and cold front will advance through the area. While the Lake Wind Advisory should coincide nicely with the wind shift/cold frontal passage, monitoring of east winds should continue in the morning hours to ensure speeds remain below the 20 mph threshold for lake wind criteria.
In the low levels of the atmosphere, a stationary front near Andros Island will begin to lift northward this afternoon. In the mid levels of the atmosphere, the western extent of an Atlantic ridge of high pressure will be located near the Bahamas today. In the upper levels of the atmosphere, an area of low pressure near the Yucatan Peninsula will progress to the south-southwest this afternoon.