Aikyam-Lab/Synoptic-Bench huggingface dataset:
723 PM EDT Wed Sep 11 2024 High pressure over New England will allow for dry weather and above average temperatures to persist through the weekend. Previous Discussion: High pressure over New England will remain stationary through the near term period. Cloud cover will gradually increase Thursday afternoon as the remnants of Francine approach the Lower Ohio Valley.
639 PM CDT Wed Sep 11 2024 * Warm through tomorrow, then cooler for a couple days with Francine remnants moving into the region.
Best risk of late-night/early morning fog is near and east of the Highway U.
754 PM EDT Wed Sep 11 2024 A stalled frontal boundary and the ridge axis remain to our north for one more day.
As a cold front tracks from northwest to southeast through Thursday, strong southwest winds will lighten and transition to northwest with less dry conditions building into southwest Wyoming and Utah.
840 PM EDT Wed Sep 11 2024 Dry weather and above average temperatures continue through the weekend with high pressure.
724 PM EDT Wed Sep 11 2024 High pressure will maintain control of the weather in the Ohio Valley for another day of dry conditions.
This is due to the combination of Hurricane Francine near the Louisiana coast and a weak inverted trough off the Bahamas cutting into a sizable high centered near the New England coast. While mid and upper level ridging is in place, the lower level ridge, while nearby, is weak. This along with the weak trough near the northern Bahamas and waning day time heat will eventually result in a light southeasterly breeze taking hold. The combination of Hurricane Francine near the Louisiana coast, an inverted trough northeast of the Bahamas, and mainland day time heating is resulting in a poorly defined pressure field across Keys waters.
Overall, no impact changes from the overnight package with the highest winds residing along and west of I-55 and south of I-12.
3) Cooler and drier weather are expected near the end of the week with the departing low pressure system. Upper level trough presently over the Pacific Northwest will send divergent upper level southerly flow out ahead if it over eastern Montana today and Thursday.
757 PM EDT Wed Sep 11 2024 Cool and dry weather is expected through mid week as Canadian high pressure builds in from the north.
644 PM CDT Wed Sep 11 2024 (Tonight) A ridge of high pressure and daytime heating/mixing is currently helping to drop dew points into the 40s to lower 50s at this hour. However, the rain should saturate the lower levels more readily with time. The rain will also cool morning lows into the lower 60s.
A persistence forecast is a good bet with high pressure firmly in control providing more nice weather through the end of the week.
Low pressure moving through the region will maintain scattered showers and a 20-30% chance of thunderstorms through this evening.
Temps bottom out into the low to mid 70s inland, and upper 70s along the coast and east of the St.
615 PM CDT Wed Sep 11 2024 (Tonight through Thursday night) Mid-level ridging builds in from the west Thursday as Hurricane Francine moves well inland over the Southern Mississippi River Valley. Clear skies tonight with dew points in the lower 70s and a light and variable wind drops overnight lows dropping to the low to mid 70s. Fair conditions continue Thursday night with temperatures a few degrees warmer courtesy of light southeast winds rising dew points. Local Coastal Flood matrix indicates a possible need of another flood statement during high tide (~3 AM) overnight/early Thursday but with the models indicating swells dropping below 6 feet minor flooding would be on the lower end of the probability scale.
652 PM CDT Wed Sep 11 2024 (Tonight through Thursday night) There is a weak upper level trough over TX this afternoon. Dry weather and warmer temperatures will continue again tomorrow. Thursday night a low amplitude upper ridge will move into West TX and the low level flow over our CWA will switch around to the southeast bringing warmer air back to the region.
An upper-level low-pressure system will continue to move through the forecast area tonight, continuing showers and thunderstorms. As of 7:30 PM MDT, the low center was located over Baker County and is expected to continue moving east-southeast this evening. The area of showers and thunderstorms will move into the Western Magic Valley after midnight as the low center moves over the central Idaho Mountains.
745 PM EDT Wed Sep 11 2024 Dry weather and above average temperatures continue through the weekend with high pressure.
Some drift inland cannot be ruled out overnight, but the highest chances remain along the coast.
931 PM EDT Wed Sep 11 2024 Cool and dry weather is expected through mid week as Canadian high pressure builds in from the north.
Warmer than normal temperatures will persist through the work week as mostly dry weather continues. Cooler temperatures for the upcoming weekend as widespread precipitation chances return thanks to an infusion of tropical moisture. Temperatures are a degrees or two warmer than this time yesterday. However high temperatures will begin a downward trend starting tomorrow as a trough passes through to the north.
854 PM EDT Wed Sep 11 2024 Cool and dry weather is expected through mid week as Canadian high pressure builds in from the north.
612 PM EDT Wed Sep 11 2024 High pressure will continue to build in tonight through Thursday.
942 PM CDT Wed Sep 11 2024 "Francine" continues to move inland along the LA coast, while a secondary upper low to the northwest of the tropical system lift's northeast toward the Arklatex.
931 PM EDT Wed Sep 11 2024 High pressure will maintain control of the weather in the Ohio Valley for another day of dry conditions.
(Today through Friday) Today will be the start of a slight drying trend as former Hurricane Francine pushes north through the Mississippi Valley, with mid-level ridging rebuilding over the southeast Gulf of Mexico. Heat will be a concern today and Friday, with high temperatures in the low to mid 90s, and peak heat indices ranging from 107-112 degrees each day across South Florida.
Meanwhile, the mid/upper levels over Texas will continue to be dominated by the trough that helped push Francine to our east. Unfortunately for those who are looking for a cooling trend, the synoptic pattern will shift to ridging regime over south-central CONUS starting on Friday. RAP 500MB analysis already shows this ridge beginning to build over New Mexico and West Texas. This ridge will drift eastward, park its axis over Texas, and begin to amplify on Friday. Therefore, it is no surprise that Friday's forecast temps are a little hotter with most inland locations reaching the low/mid 90s. We'll feel the cooler winds of fall eventually.
(Today and tonight) Upper level ridging across far West Texas will slowly begin build east. This will result in temperatures a few degrees warmer than what we saw yesterday.
The upper pattern this afternoon features Hurricane Francine approaching the Gulf Coast of Louisiana and a longwave trough across the western CONUS. Francine is progged to slow and stall across the lower Mississippi into the Ohio River Valleys as the western trough makes eastward progression towards the Plains on Friday.
417 AM EDT Thu Sep 12 2024 A large area of high pressure will maintain control of the weather in the Ohio Valley today with an increase in cloud cover from the southwest ahead of the remnants of Francine. Mid level ridge to remain over the Great Lakes thru the Mid Atlantic. Remnants of Francine will track north thru the Lower MS Valley with some vanguard high level clouds spilling into the area from the southwest. Mid level ridge from the Great Lakes thru the Mid Atlantic will work as rex block. Low temperatures will range from the upper 50s northeast to the lower and middle 60s southwest. Unsettled weather is forecast to return as the remnants of Francine reach the Western Ohio Valley, though persistent high pressure to the north should limit the chance for heavy and widespread precip.
Upper low is moving into southern Idaho with lead impulse lifting into the Northern Plains. Dry line shifts through northeastern Wyoming into the Black Hills/southwestern South Dakota this afternoon, with cold front moving through northeastern Wyoming and far western South Dakota this evening. May be a few thunderstorms this afternoon and evening along the dry line, with a better chance of storms along the cold front this evening. Better buoyancy/shear is located behind cold front from the Big Horns into southeastern Montana where there is a higher threat of hail.
Today's upper level pattern will feature weak ridging sandwiched between Tropical Storm Francine headed into Mississippi and the upper trough over the Rockies. Breezy winds and continued low level moisture with dewpoints in the upper 50s to lower 60s will help to make for slightly above normal temperatures tonight in the lower to mid 60s.
132 AM EDT Thu Sep 12 2024 High pressure will be the main feature through the next several days, bringing above normal temperatures and plenty of sunshine. The center of high pressure which had been centered just to our south will have drifted to the east, which should support increased southerly winds rather than southwest/west flow that we saw today in most locations. However, the pressure gradient looks minimal as large ridge upstream over the Great Lakes region builds up and aids in weakening an already weak boundary approaching from our northwest.
An upper trough is currently overhead brining plenty of showers for most of the interior. The upper trough axis will shift east of the Cascades during the afternoon and we'll see showers gradually diminishing west of the Cascades, but not going away completely until later this evening.
Francine which is currently a tropical cyclone over LA will lift north generally following the Mississippi River and weaken to a tropical depression. (Friday Night through next Thursday) Upper level ridge will be building over the eastern US as we head into the weekend and that will help to keep the remants of Francine over us.
In the low levels, a lee cyclone will deepen over eastern MT today with a 30-50 kt low-level jet (LLJ) developing from central NE into the Dakotas. This weekend: Mid-level heights will build over the northern and central Plains in response to the amplification of another trough along the Pacific Coast.
342 AM EDT Thu Sep 12 2024 High pressure will remain in control of our weather through the next several days, bringing above normal temperatures and plenty of sunshine. High pressure continues to be the dominate weather feature across the Northeast, bringing pleasant weather and above normal temperatures to the region. Temperatures this afternoon will be a few degrees warmer than yesterday, with highs climbing into the upper 70s to low 80s this afternoon. Overnight lows will be a few degrees warmer due to southerly flow, with temperatures generally in the 50s. Synoptically quiescent conditions with very light winds - generally 5 mph or less - expected through the short-term forecast period with a deep-layer ridge anchored across the North Country.
257 AM EDT Thu Sep 12 2024 - Another warm and dry today with highs in the mid to upper 80s - Rainfall from Hurricane Francine late tonight into Friday across southern Indiana, northern extent likely near the I-74 corridor - Cooler weather with highs in the upper 70s to lower 80s for the weekend. Cloud cover will gradually increase from the south to the north through the day which will help to limit the higher end warm air that was seen yesterday across southern Indiana, but the substantial sky cover won't be arriving across central and northern Indiana to provide much relief from the heat. These clouds and gradually increasing dew points will help to insulate temperatures and keep lows from falling below the low 60s.
218 AM MDT Thu Sep 12 2024 are anticipated through Friday morning as a slow-moving closed low, currently centered over Lemhi County, gradually shifts into north- central Montana. The lowest snow levels will occur just north and west of the low's path bringing appreciable snowfall to mountain ranges such as the Bitterroots, Anaconda/Pintlers, higher elevations in Lemhi County, and northeastward into the Glacier Park region.
Temperatures in the low 60s are expected Thursday night. Highs on Friday will be slightly cooler, with highs in the mid 80s. The next chance (20-40%) for rain arrives Friday night as a trough over the Rockies begins to emerge over the Plains.
1246 AM CDT Thu Sep 12 2024 (Tonight through Thursday night) Mid-level ridging builds in from the west Thursday as Hurricane Francine moves well inland over the Southern Mississippi River Valley. Clear skies tonight with dew points in the lower 70s and a light and variable wind drops overnight lows dropping to the low to mid 70s. Fair conditions continue Thursday night with temperatures a few degrees warmer courtesy of light southeast winds rising dew points. Local Coastal Flood matrix indicates a possible need of another flood statement during high tide (~3 AM) overnight/early Thursday but with the models indicating swells dropping below 6 feet minor flooding would be on the lower end of the probability scale.
There will still be plenty of cloud cover tonight in our north but temperatures will bottom out cooler than normal in the low to mid 60s.
240 AM CDT Thu Sep 12 2024 - Rain chances with Tropical Storm Francine are likely (60-80%) along and east of the Highway 63 corridor beginning today and lasting through Friday.
Water vapor imagery show a vigorous mid-level trough across SW Canada and the nw U. Further downstream, ridging prevails over the Upper Mississippi Valley and the Great Lakes region.
206 AM EDT Thu Sep 12 2024 Dry weather and above average temperatures continue through the weekend with high pressure. Dry weather continues today as high pressure remains dominant.
We are already seeing the warmer conditions this morning with most locations only in the 60s, up about 5 degrees from this same time yesterday. Mid level thermal ridging developing over western portions of the area this afternoon will only accelerate warming today with highs in the upper 90s along the Pecos River and into the 100s along the Rio Grande. Mid level ridging expands Friday with the thermal ridge nudging east a bit. Highs will top out near 100 for most locations outside of the higher terrain.
Through Friday: Easterly winds will increase today as the surface pressure gradient starts to tighten between Francine's remnants well to the south and expansive high pressure just to our north and east.
Warmer than average temperatures are expected to continue through the period as ridging is expected remain rather strong across the Upper Midwest. VFR conditions will prevail for the TAF period as smoke will continue to diminish in the lowest levels.
133 AM EDT Thu Sep 12 2024 High pressure over New England will allow for dry weather and above average temperatures to persist through the weekend. Previous Discussion: High pressure over New England will remain stationary through the near term period. Cloud cover will gradually increase Thursday afternoon as the remnants of Francine approach the Lower Ohio Valley.
(Today through Friday) South-central Texas will be on the back side of an upper level trough, with dry and subsident conditions over the region. An upper level ridge will build across the region Friday.
Francine which is currently a tropical cyclone over LA will lift north generally following the Mississippi River and weaken to a tropical depression. (Friday Night through next Thursday) Upper level ridge will be building over the eastern US as we head into the weekend and that will help to keep the remnants of Francine over us.
1251 AM EDT Thu Sep 12 2024 Dry weather and above average temperatures continue through the weekend with high pressure.
Dry and cooler conditions are expected to finish out the week, along with gusty southwest winds today.
159 AM EDT Thu Sep 12 2024 High pressure will remain in place over the next 7 days with above average temperatures and sunny skies. High pressure remains in place into the weekend with mostly clear skies and no chance of precipitation. 500 mb heights will increase to over 580 dm by Friday so temperatures will be well above average the next few days as the ridge strengthens. 155 AM Update High pressure will be in control through the first half of the weekend.
Water vapor imagery and RAP analysis show a vigorous mid-level trof over sw Canada and the nw U. Downstream, ridging prevails over the Upper Mississippi Valley/Great Lakes. Closer to home, under the ridging, it's been a quiet night across Upper MI. Temps range from the low/mid 50s F at traditional interior cool spots to the mid 60s F at some locations near the Great Lakes. Cold front will continue shifting se today. Inland, expect late summer warmth with highs in the low/mid 80s F. Remains of Francine will be over the lower Mississippi Valley 00z Fri with a trough in the Rockies and a ridge over the upper Great Lakes. Troughing pushes into the northern Plains 00z Sat. The ridge gets pushed into the eastern U. 00z Sun as a broad trough remains over the western half of the U.
Pattern/synopsis: High pressure off the east coast is extending ridging back into southern lower MI. Return flow continues around this high, but moisture return is non-existent. Will the haze/smoke be enough to get in the way of a very warm day? Temps varied either way compared the forecast yesterday: GLR was cooler than expected (clouds hung on too long), but TVC was warmer than forecast. A strengthening upper level ridge will be centered over MI Friday, and will slowly slip eastward over the next 5 days. Temperatuers will be warmer, but shouldn't become too hot (mid 80s max) due to trapped smoke under the ridge.
Expect cooler temperatures for the next few days, but this weekend is looking mostly dry and warmer. Brusda GTF 47 58 45 65 / 90 90 100 60 CTB 45 54 43 64 / 90 90 100 60 HLN 49 57 46 65 / 100 100 90 60 BZN 43 57 39 64 / 90 90 100 40 WYS 29 47 26 55 / 90 100 90 40 DLN 39 51 37 61 / 90 100 70 20 HVR 50 67 46 65 / 70 80 100 80 LWT 47 61 42 62 / 70 90 90 60 Flash Flood Watch from 9 AM MDT Thursday through Thursday evening for Big Belt, Bridger and Castle Mountains.
* Warm through tomorrow, then cooler for a couple days with Francine remnants moving into the region. Temperatures Friday, driven by the increased cloud cover, will ease back into the 70s for most, while western areas may top out in the lower 80s. This will deflect a currently landfalling upper trough to be pushed north/northeastward into the Canadian Plains. This will place the area within a transition region between the aforementioned, block and trough deflected north.
138 AM EDT Thu Sep 12 2024 Cool and dry weather is expected through mid week as Canadian high pressure builds in from the north. The high-pressure ridge that has been in control continues to shift northward, with the remnants of Francine remaining to the west. The northeast flow will be well established, with the cold front remaining to the south. A coastal trough will developed off the coast late Thursday into Friday. As the trough develops, the chances of rain will increase from the east and spread to the west.
1012 PM PDT Wed Sep 11 2024 A fall-like weather pattern arrives today with cooler temperatures and chances for showers and a few thunderstorms. As the upper low in Oregon moves east tonight, the majority of HREF members expand rain with this band north and west back into Lewiston, Coeur d'Alene, Pullman, Sandpoint, and Bonners Ferry.
Mixing out to H85 MB makes for widespread high temps in the low to mid 80s, even taking into account the cloud shield and lingering smoke aloft. low center starts to get acted upon by the blocking high acrs the GRT LKS. Tropical system remnants of Francine still on track to get pulled north up the low to mid MS RVR Valley through Friday. The remnant low pressure will increasingly encounter a developing rex block type complex acrs much of the eastern half of the CONUS.
Expect cooler temperatures for the next few days, but this weekend is looking mostly dry and warmer. - Moldan/Ludwig GTF 47 58 45 65 / 90 90 100 60 CTB 45 54 43 64 / 90 90 100 60 HLN 49 57 46 65 / 100 100 90 60 BZN 43 57 39 64 / 90 90 100 40 WYS 29 47 26 55 / 90 100 90 40 DLN 39 51 37 61 / 90 100 70 20 HVR 50 67 46 65 / 70 80 100 80 LWT 47 61 42 62 / 70 90 90 60 Flash Flood Watch from 9 AM MDT Thursday through Thursday evening for Big Belt, Bridger and Castle Mountains.
1244 AM CDT Thu Sep 12 2024 "Francine" continues to move inland along the LA coast, while a secondary upper low to the northwest of the tropical system lift's northeast toward the Arklatex.
Medium range guidance is in strong agreement that a ridge centroid will flank the remnants of Francine and become a dipole with Southeast Michigan remaining under the high pressure influence.
(This evening through Thursday night) Mostly high pressure persists over the CWA while hurricane Francine makes landfall off the gulf coast of Louisiana and an upper trough advances from the western CONUS. Surface winds will stay breezy through the day and the night too, thanks to the low level jet that is forecast to setup over the region.
The highest chances should be over interior areas, but terminals along the coast could see some scattered activity as storms develop.
Temps bottom out into the low to mid 70s inland, and upper 70s along the coast and east of the St. (Thursday through Friday night) The frontal boundary that has been stalled, will become more of a warm front extending across north central NE FL Thursday morning from remains of Francine. The boundary will then remain stalled, with high pressure to the northeast. An area of low pressure will develop just to the east of the area over the Atlantic waters along this boundary.
1232 AM CDT Thu Sep 12 2024 (Tonight through Thursday night) There is a weak upper level trough over TX this afternoon. Dry weather and warmer temperatures will continue again tomorrow. Thursday night a low amplitude upper ridge will move into West TX and the low level flow over our CWA will switch around to the southeast bringing warmer air back to the region. Lows Friday will be a few degrees warmer than Thursday.
Francine should slow and stall across the lower Mississippi into the Ohio River Valleys as the western trough makes eastward progression towards the Plains on Friday.
626 AM CDT Thu Sep 12 2024 (Today through Friday) Mid-level ridging builds in over during the course of the day, allowing for a drier environment over Deep South Texas and the Rio Grande Valley. As for the temperatures, the highs for today will continue to warm seeing parts of the region in the upper 90s and even reaching the triple digits. However, the high temperatures for tomorrow will continue to rise thus high temperatures for more areas will be in the triple digits. A Coastal Flood Advisory is in effect for the Lower Texas Coast through the later part of the morning.
620 AM CDT Thu Sep 12 2024 (Today through Friday) South-central Texas will be on the back side of an upper level trough, with dry and subsident conditions over the region. An upper level ridge will build across the region Friday.
925 AM EDT Thu Sep 12 2024 A large area of high pressure will maintain control of the weather in the Ohio Valley today with an increase in cloud cover from the southwest ahead of the remnants of Francine. Previous Discussion: Mid level ridge to remain over the Great Lakes thru the Mid Atlantic. Remnants of Francine will track north thru the Lower MS Valley with some vanguard high level clouds spilling into the area from the southwest. Mid level ridge from the Great Lakes thru the Mid Atlantic will work as rex block. Low temperatures will range from the upper 50s northeast to the lower and middle 60s southwest. Unsettled weather is forecast to return as the remnants of Francine reach the Western Ohio Valley, though persistent high pressure to the north should limit the chance for heavy and widespread precip.