Aikyam-Lab/Synoptic-Bench huggingface dataset:
647 PM EDT Wed Sep 4 2019 It will be mostly clear to partly cloudy overnight and noticeably cooler with morning lows generally in the 50 to 55 degree range. Cool and dry weather will continue Thursday with highs in the lower to middle 70s.
Quiet conditions are expected over the next 36 hours as a short- wave trough departs to the east southeast, allowing summer-like temperatures and humidity to return for Thursday.
/issued 304 PM CDT Wed Sep 4 2019/ A cold front is located just north of the Mid-South at this time. Temperatures have climbed into the lower to mid 90s this afternoon south of the front.
Cool and calm conditions this afternoon as high pressure sits over the area. Temperatures will be warmer Thursday under strong warm advection, with highs in the mid to upper 80-s possible across western minnesota, and highs in the 80s possible up to I-94.
730 PM EDT Wed Sep 4 2019 High pressure will push dry air into NY and PA tonight, clearing skies. Skies turn clear to partly cloudy overnight with high pressure building in. A cooler and drier airmass, as well as more breaks in the clouds, will help temperatures drop back quite a bit tonight, generally into the low/mid 50s across the lower elevations and river valleys. High pressure gets squeezed out by Dorian to the southeast and multiple waves from the northwest.
Hot and dry conditions are still expected for the remaining areas as high pressure regains control across the region.
139 AM EDT Thu Sep 5 2019 High pressure will push dry air into NY and PA tonight, clearing skies. Skies turn clear to partly cloudy overnight with high pressure building in. A cooler and drier airmass, as well as more breaks in the clouds, will help temperatures drop back quite a bit tonight, generally into the low/mid 50s across the lower elevations and river valleys. High pressure gets squeezed out by Dorian to the southeast and multiple waves from the northwest.
As Dorian becomes entangled with the northern stream trough, he'll assist in elongating an area of +PV across the Southeast.
A ridge of high pressure will keep dry conditions in place across the area to end out the week. The air mass that is currently in place will bring cooler than normal temperatures to eastern Kentucky, with todays highs forecast to only make into the upper 70s for most of the area. some locations south of the Hal Rogers Parkway may achieve highs in the lower 80s by this afternoon. Highs should be able to warm to normal values in the lower 80s area wide.
408 AM EDT Thu Sep 5 2019 High pressure centered just west of the area will remain in place today and tonight. A weak cold front will push through the area on Friday afternoon and evening. High pressure will then become reestablished across the region for the weekend. A trailing cold front will move into the area late in the day. With dry air in place, temperatures will drop off into the lower to mid 50s tonight.
236 AM MDT Thu Sep 5 2019 Main forecast concern will be the low possibility of thunderstorms through early this evening and again late Thursday afternoon and early evening. A few of the high resolution models had thunderstorms starting near to or over the far western portion of the area. Heights rise over the area through the day with level ridge parked on top of us. There will be much warmer high temperatures, and the forecast blend looks reasonable and did not change. There is a deep upper-level trough along the west coast moving eastward and looks to replace an upper-level ridge that is moving out of the High Plains.
1112 PM EDT Wed Sep 4 2019 High pressure will build southeast into the region late this week, as Hurricane Dorian tracks off the Mid Atlantic coast.
1128 PM EDT Wed Sep 4 2019 A cold front moving through northern New England into early this evening will result in thunderstorms. Cooler and drier weather is expected for Thursday and Friday.
338 AM CDT Thu Sep 5 2019 Above normal temperatures and mainly dry weather is expected through Friday as a strong upper level high pressure system in the rockies and southern plains continues to dominate the weather across west Texas and southeast New Mexico.
Shower and thunderstorm activity will clear the region by midday, giving way to partially clearing skies and warmer afternoon highs in the 70s.
252 AM CDT Thu Sep 5 2019 Weak cold front struggling to proceed through the Midsouth this hour. Readings were in the low to mid 70s with light north to northeast winds. and coupled with a light north breeze it should feel cooler. Tonight's lows will drop into the low and mid 60s for most.
A weak cold front is draped across northern Arkansas and will begin to lift back to the north today as a warm front. Today, temperatures will be a couple degrees cooler than what was seen yesterday with slightly lower dew points.
Today, a 500-hPa ridge will prevail across the central Rockies. At the surface, lee troughing will continue. Here, a slight relief can be expected with highs about 10 degrees cooler than compared to Thursday.
355 AM EDT Thu Sep 5 2019 Quiet weather today as a high pressure over the central Great Lakes slides to the east throughout the day. Winds aloft will shift out of the west with surface flow turning east to southeast as the high pressure departs east. Temperatures at 850 mb creep slightly higher to around 10C helping daytime highs climb a couple degrees higher compared to yesterday with most areas in the low to mid 70s. Slightly cooler across the Thumb with temperatures in the upper 60.
250 AM CDT Thu Sep 5 2019 Upper ridge remains anchored from the northern/central Rockies across the central/southern high Plains. Another weak cold front is progged to move south across Kansas during Friday with slightly cooler (not as hot) weather, more noticeable closer to the I-70 corridor in central Kansas.
225 AM EDT Thu Sep 5 2019 High pressure over the area will bring quiet weather and pleasant temperatures through the end of the work week and into the weekend. High pressure gets squeezed out by Dorian to the southeast and multiple waves from the northwest.
300 AM EDT Thu Sep 5 2019 Synopsis/Discussion/Marine - Patchy fog this morning; patchy frost near and north of US-10 - Scattered showers late tonight into Friday; Thunder possible north of I-96 - Quiet weekend ahead High pressure currently centered over the midwest will gradually track eastward and lead to quiet weather through much of today. Late tonight and into Friday we will see our next chance for rain as an area of low pressure digs southwards from central Canada into the upper Great Lakes. Generally quiet weather is expected for this weekend as high pressure is projected to build into the region.
Cold front passage still on track to pass through the area late tonight into the early morning hours. No precip expected with the frontal passage however, slightly cooler temps are in store tomorrow morning. Again, the dry cold front will move south across the Tennessee Valley overnight tonight into Thursday morning, bringing cooler, drier air into the Tennessee Valley. Winds will ramp down Thursday evening as the pressure gradient over the area weakens with the trough pushing Dorian away to the northeast. With weaker northerly winds and high pressure starting to creep back in, expect temperatures to be a few degrees warmer on Friday.
345 AM CDT Thu Sep 5 2019 Early morning sfc analysis shows high pressure centered over the Red River Valley ridging sewd over the forecast area. Water vapor imagery shows mid/upper- level ridging in place from the Rockies through the srn Plains to the wrn Gulf Coast region. Moisture values continue to drop in response to the strong ridging in place overhead with KLCH 00Z sounding showing a PWAT value down to 1. The ridging aloft is progged to linger into the weekend through the first few days of this forecast period, limiting moisture through the column and keeping any thoughts of convective development basically nil.
305 AM CDT Thu Sep 5 2019 Yet another hot day in store as the upper ridge remains locked in across the central Rockies into the central/southern Plains.
1156 PM CDT Wed Sep 4 2019 A fairly quiet weather pattern is currently in place over the lower Missouri Valley this afternoon as a ridge of high pressure continues to build southward with time.
Temps again should be above climo in the dry subsidence regime with most areas in the low to mid 90s today and slight differences for Friday. As the trough across the area pushes east, mid-level high pressure builds over the area through the rest of the extended.
142 AM EDT Thu Sep 5 2019 Aviation - Cool temperatures into Thursday - Scattered showers for Thursday night into Friday High pressure centered in Minnesota will track eastward through tonight into Michigan. This fair weather system will draw down a cooler airmass from Ontario as it advects into the area.
Generally quiet weather is expected through the start of the weekend under high pressure. A bit of drizzle will be possible Friday morning as a weak low pressure system passes to our north.
216 AM EDT Thu Sep 5 2019 It will be mostly clear to partly cloudy overnight and noticeably cooler with morning lows generally in the 50 to 55 degree range. Cool and dry weather will continue Thursday with highs in the lower to middle 70s.
Meanwhile, a trailing cold front will advance through the northern Plains into our area by Thursday afternoon. The cold front will progress through the area Thursday afternoon and evening with a cooler and drier air mass overspreading the region from the north. A ridge of high pressure will build through the mid MO Valley on Friday into Friday night with highs on Friday in the lower to mid 80s.
The good mixing combined with an upper ridge nudging farther north into the plains will push temps to the highest point of the period. At daybreak Friday, large high pressure over northern Alberta and Saskatchewan will have a ridge stretching southeasterly across the Dakotas.
330 AM CDT Thu Sep 5 2019 The upper high continues to stay put overhead.
350 AM CDT Thu Sep 5 2019 Broad High Pressure, centered on the OK/TX Panhandles at mid- levels (700 mb, 500 mb) will continue to keep the WFO PAH forecast area along the southern limb of northwest flow aloft, adjacent to the eastern limb of the southwestern U. ridge. This ridge is expected to move little during the short term period.
151 AM CDT Thu Sep 5 2019 Broad High Pressure, centered on the OK/TX Panhandles at mid- levels (700 mb, 500 mb) will continue to keep the WFO PAH forecast area along the southern limb of northwest flow aloft, adjacent to the eastern limb of the southwestern U. ridge. This ridge is expected to move little during the short term period.
Quiet conditions are expected over the next 36 hours as a short- wave trough departs to the east southeast, allowing summer-like temperatures and humidity to return for Thursday. Friday will stay dry and warm as the CWA remains on the northeastern periphery of broad mid-level ridging centered over CO, NM, and the TX panhandle. By the weekend, we see a pattern shift as a deep trough makes its way toward the Pacific coast and the ridge flattens out, with zonal flow over the Central Plains.
Tonight Through Friday Strong upper ridging over the southern and central Rockies and Plains states will maintain subsident, precipitation-free northerly flow aloft over Arkansas with above normal temperatures through the period. A weak surface cold front will stall over central AR tonight where it will remain through Thursday before migrating back northward as a warm front on Friday. May see patchy fog over the northern tier of counties early Thursday morning due to the intrusion of somewhat cooler air behind the front. Highs on Friday will range from the lower 90s over the north to the upper 90s over the south. Low temperatures the next two nights will range from the upper 60s over the north to the lower 70s over the south.
Meanwhile, a persistent ridge centered just to our west will bring more hot days and warm nights to Oklahoma and northern Texas. A more meaningful trough is expected to move across the western United States by the end of this weekend. This will bring south to southwest flow aloft and somewhat cooler temperatures.
1214 AM EDT Thu Sep 5 2019 High pressure will build across the area into Friday.
214 AM MDT Thu Sep 5 2019 Water vapor shows upper ridge rebuilding into the Northern Rockies with northern extent of monsoonal moisture lifting northward across WY. Dry cool front will continue working southeast through our zones this morning and will result in slightly cooler temps today. Weak upper wave embedded within the ridge could bring a storm or two to our southwest zones late tonight.
251 AM EDT Thu Sep 5 2019 Cooler and drier weather is expected today and Friday.
311 AM CDT Thu Sep 5 2019 Yesterday's frontal passage means slightly cooler temperatures today. Highs are expected to top out in the low to mid 80s.
This WAA will occur earlier over the western CWA which will allow temperatures to rise more quickly with highs in the upper 80s to around 90 whereas across the eastern CWA highs will range in the low to mid 80s. Tonight, a upper level trough will move into the western Great Lakes which will force a cold front into the area. Weak CAA behind the cold front will drop highs into the low to mid 80s on Friday.
We will stay under the influence of an upper air high pressure over eastern Colorado and with southwest winds lows fall into the mid to upper 60s. The upper level high pressure will keep us hot and dry through Friday with highs in the lower to mid 90s.
414 AM EDT Thu Sep 5 2019 High pressure over the area will bring quiet weather and pleasant temperatures through the end of the work week and into the weekend.
/issued 156 PM CDT Wed Sep 4 2019/ Another warm, dry day is going into the books today across Southeast New Mexico and West Texas, with similar conditions expected through the end of the week as an upper ridge maintains its hold over the region. Temperatures today will top out in the lower to middle 90s for most, with 80s across higher terrain, and lower 100s through portions of the Rio Grande Valley. Heading into the weekend, a pattern shift is looking more likely, as the ridge migrates eastward toward the Gulf Coast in response to a deepening trough over the western CONUS.
354 AM EDT Thu Sep 5 2019 High pressure will build southeast into the region late this week, as Hurricane Dorian tracks off the Mid Atlantic coast.
326 AM CDT Thu Sep 5 2019 Water vapor imagery this morning was showing a dome of high pressure in control across the western and central CONUS with zonal flow along the U. Meanwhile, an upper level low was situated off the Pac NW coast. At the surface, large area of high pressure was centered near the western Great Lakes region. Did note though that a cold front is progged to drop through the CWA Thursday evening.
For tonight, a cold front will bring a chance for thunderstorms, to northern Illinois. Early morning surface map indicated 1022 MB high centered over the Great Lakes with ridging extending south through IL. Highs should be near to a few degrees warmer than yesterday, in the upper 70s to around 80. Tonight, low pressure will track from the upper Midwest, towards the Great Lakes. This will push a cold front towards the area. After any overnight convection diminishes and shifts east, the cold front will shift across the area Friday morning to midday. Cooler air lags well north so with deeper mixing highs should reach the low/mid 80s.
Weak ridging through this afternoon will allow for benign weather conditions, with clouds increasing from the south.
/NF/ Ridging at the surface and aloft continues to dominate the weather over the region this evening providing clear skies.
1201 AM MDT Thu Sep 5 2019 Moisture will continue to wrap around the north and western periphery of the upper level high, feeding afternoon convection. Otherwise, cloud cover will remain overnight, keeping tonight's lows slightly warmer. The PacNW trough will push across the northern Rockies on Friday, moving north and east of Colorado by Friday night. Moisture and slight instability from the passing trough will support storm development again Friday afternoon, favoring higher terrain along the Uintas in northeast Utah and the Continental Divide in western Colorado. Brief ridging will set up over the CWA as we move into the weekend, ahead of the next Pacific trough digging into the west coast.
A light, but steady north breeze continues, and sfc dewpoints are in the lower 60s in most places. The lower humidity combined with cooler temperatures and abundant sunshine will make for a spectacular Thursday.
Slightly cooler air will be filtering in, so today should not be quite as hot as recent days although max temperatures will still be a bit above normal in most locations.
249 AM CDT Thu Sep 5 2019 A weak cold front has stalled across southeastern Kansas and southwestern Missouri early this morning. The front will lift back to the northeast this morning and afternoon as a warm front. An upper level ridge of high pressure will remain to the west of the area Friday. Behind the front highs in the middle 80s will be possible, south of the front highs in the low to middle 90s will be possible with heat index values around 100 degrees across southern Missouri.
We will continue the "Limited" threat area for heat in our Hazardous Weather Outlook text and graphics for today due to the combination of expected temperatures in the mid- to upper-90s and moisture pooling ahead of an approaching weak cold front. The highest afternoon dew points are expected along a corridor extending from the Delta southeastward toward the Jackson Metro and Meridian areas of central and eastern MS, with better mixing likely to occur farther south and west toward central LA and far southwest MS. As the front dips into eastern central and eastern portions of the forecast area tonight, expect drier air to help min temps bottom out in the low 60s in the Golden Triangle area.
This activity is expected to continue during the early morning hours, specially along the southern Coastal Bend and northern Brush Country where the higher moisture content resides. Conditions are expected to improve by this evening with rain chances quickly diminishing across the region as high pressure takes over. Temperatures today will be a few degrees warmer than yesterday with a few locations observing heat indices of about 105-109 degrees. Friday will be warmer with temperatures returning to the triple digits across the northern zones, and another day of heat index values in the 105-109 range is in store.
356 AM MDT Thu Sep 5 2019 High pressure aloft remains centered over southeast Colorado today and tonight as the upper ridge amplifies over the Intermountain Region today and moves over the northern Rockies tonight as small trough moves into the Pacific Northwest.
Water vapor imagery this morning was showing a dome of high pressure in control across the western and central CONUS with zonal flow along the U. Meanwhile, an upper level low was situated off the Pac NW coast. At the surface, large area of high pressure was centered near the western Great Lakes region. Did note though that a cold front is progged to drop through the CWA Thursday evening.
923 AM CDT Thu Sep 5 2019 Our area remains under the influence of a mid level ridge that is anchored from Colorado southeast to the Red River valley. /Issued 305 AM CDT Thu Sep 5 2019/ Yet another hot day in store as the upper ridge remains locked in across the central Rockies into the central/southern Plains.
Norcal remains under southerly flow aloft between high pressure over the four corners U. and a closed low off the north coast. The overall airmass cools slightly today as the main upper low pushes towards the north coast but daytime highs are still expected to come in a little above normal. The offshore upper low is forecast to open and shift into the Pacific Northwest tonight and Friday morning taking any precipitation chances with it. Airmass under brief ridging on Friday will continue daytime highs a little above normal for the end of the work week.
751 AM EDT Thu Sep 5 2019 High pressure will build southeast into the region late this week, as Hurricane Dorian tracks along the Carolina Coast today and tonight, then off the Mid Atlantic coast.
Afternoon highs today will again be warmer than usual highs for early September. The upper ridge will continue to dominate.
940 AM EDT Thu Sep 5 2019 Cooler and drier weather is expected today and Friday.
Chattanooga Airport, TN 91 65 91 68 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 89 64 88 66 / 0 0 0 0 Oak Ridge, TN 88 62 89 67 / 0 0 0 0 Tri Cities Airport, TN 86 61 83 60 / 0 0 0 0.
/Issued 305 AM CDT Thu Sep 5 2019/ Yet another hot day in store as the upper ridge remains locked in across the central Rockies into the central/southern Plains.
A second surge of moisture will move over the entire region during the day on Friday, bringing widespread rain showers and temperatures 15 to 20 degrees cooler than what we'll see today. Showers will tapper off overnight Friday night, as the low pressure system moves into central Montana.
Weak high pressure at the surface will yield light northerly winds this morning which will turn southwesterly by this afternoon. /issued 345 AM CDT Thu Sep 5 2019/ Early morning sfc analysis shows high pressure centered over the Red River Valley ridging sewd over the forecast area. Water vapor imagery shows mid/upper- level ridging in place from the Rockies through the srn Plains to the wrn Gulf Coast region. Moisture values continue to drop in response to the strong ridging in place overhead with KLCH 00Z sounding showing a PWAT value down to 1. The ridging aloft is progged to linger into the weekend through the first few days of this forecast period, limiting moisture through the column and keeping any thoughts of convective development basically nil.
As the upper level short wave trough moves toward the coast, the threat of dry thunderstorms, and more importantly lightning strikes, has passed. The trough axis will pass over the Bay Area today keeping onshore flow over the Central Coast.
414 AM MDT Thu Sep 5 2019 Generally quiet weather will prevail across northeast Montana through the next 24 to 36 hours, but as low pressure approaches, expect increasing clouds by Friday with scattered showers and thunderstorms by the afternoon.
524 AM MDT Thu Sep 5 2019 High pressure aloft remains centered over southeast Colorado today and tonight as the upper ridge amplifies over the Intermountain Region today and moves over the northern Rockies tonight as small trough moves into the Pacific Northwest.
A moderate pressure gradient between Hurricane Dorian off the south Carolina coast and high pressure over the central U.
An Upper Level Ridge will continue to sit across the region, this will continue to keep much of the forecast area mostly dry. A weak cold front will move through this evening.
/issued 330 AM CDT Thu Sep 5 2019/ The upper high continues to stay put overhead.
953 AM EDT Thu Sep 5 2019 High pressure centered just west of the area will remain in place today and tonight. A weak cold front will push through the area on Friday afternoon and evening. High pressure will then become reestablished across the region for the weekend. Short range guidance suggests that this low level moisture will mix out by mid morning. A trailing cold front will move into the area late in the day. With dry air in place, temperatures will drop off into the lower to mid 50s tonight.
Kanofsky The aforementioned low pressure system will move southeastward towards the Great Lakes, sending a cold front through the region on Friday afternoon and Friday night. Given the timing of the cold front, most areas should see highs in the mid/upper 80s to near 90 degrees on Friday.
629 AM EDT Thu Sep 5 2019 High pressure over the area will bring quiet weather and pleasant temperatures through the end of the work week and into the weekend.