Aikyam-Lab/Synoptic-Bench huggingface dataset:
619 AM CDT Fri Oct 6 2023 As of 230 AM Friday morning, broad northwesterly midlevel flow was present across the central CONUS with a deep trough across the upper Midwest. An area of weak surface ridging was positioned across west-central KS, yielding light winds area-wide. This cold front is progged to traverse the forecast area later this morning into the early afternoon. Behind the front, gusty north winds up to 35 MPH will usher in much cooler temperatures. These gusty winds will briefly overlap with humidity values in the low to middle 20 percent range. Surface ridging will slide into the area tonight, allowing skies to clear and winds to become very light.
510 AM MDT Fri Oct 6 2023 Northwest flow aloft will continue today as eastern Utah and western Colorado remain stuck in between an amplifying ridge over the West and a deep trough over the upper Midwest and Great Lakes. The warming trend that we've seen the past few days marches on unabated as highs will climb a few degrees warmer than today and top off roughly 4 to 8 degrees above seasonal norms. Overnight lows will once again bottom out in the 20s and 30s up high and in the 40s and 50s in the lower elevations.
(Today through Saturday Night ) A cold front was situated acrs NW AR early this mrng where drier air was sloly advecting in behind it, where sfc dewpoints were in the 50s. Expect a decent pre-fntl warmup today with highs ranging fm the 70s to the lower 80s. This bndry represents the leading edge of much cooler and drier air that wl overspread the region. Speeds of 15 to 20 mph will be common, with gusts up to 30 mph expected, especially in the higher elevations. Winds wl diminish later Sat and Sat night as high pressure conts to bld into the Mid- South.
This will bring us a significant surge of cool dry air resulting in cooler than normal morning lows Saturday. Today though enough insolation is expected to result in another day of warmer than normal temperatures.
312 AM MDT Fri Oct 6 2023 *** Glasgow radar remains down due to hardware upgrade and replacement until October 16 *** MORNING DISCUSSION: Synoptic Setup: Forecast begins with a large cold core trough dipping into the middle third of Canada and the CONUS. Across the western third a large amplitude ridge rides up the coast from California to British Columbia. Father west another trough is moving into the northeast Pacific behind the ridge. The ridge to the west will continue to press into the region shallowing out some of the cold air tonight leading to a warmer conditions with only valley bottoms freezing while ridge tops may maintain upper 30s or lower 40s.
(Rest of Today) Areas of light rain and drizzle continue to push east-northeast through the area along and in advance of the first of two cold fronts. Elsewhere, clouds and precipitation may hold temperatures in the lower to middle 70s.
A large and broad trof continues to descend over the Mississippi Valley region today and keeps us in cyclonic flow aloft. Northwest flow at the sfc will be reinforced today by a second cold front coming through that will lead to breezy winds today. Highs today will be in the lower 70s as we clear out and dry out. We will be cooler tomorrow behind this second cold front with highs only in the lower 60s. Models have been trending further east with this upper level trof with the axis being over the Ohio Valley tomorrow afternoon.
554 AM CDT Fri Oct 6 2023 (Today and tonight) A strong upper ridge is currently moving southeast through the upper Midwest/Great Lakes region, putting the West Central Texas region under weak northwest flow aloft. Compared to the past few days, conditions today will remain rather benign with fairly light east/northeast winds and temperatures in the low to mid 80s. Mid to high level cloud cover will remain in place over the southern 1/3 of the area through the overnight hours, keeping temperatures along the I-10 corridor slightly cooler this afternoon. This will help to push a reinforcing, secondary cold front through the area overnight. A much cooler and drier airmass will follow in behind the front with dewpoints quickly dropping into the upper 30s to low 40s, allowing overnight lows to drop into the low to mid 50s.
526 AM MDT Fri Oct 6 2023 A broad ridge will continue to advance over the western states today. The low clouds will prevent insolation this morning leading to yet much cooler temperatures today across the plains. High temperatures will fall to 10 to 15 F cooler than normal across the plains, still near normal across the high country. Temperatures here will likely fall below 36 F in many areas but stay above freezing. High pressure ridge aloft will build west of Colorado with decreasing northwest flow aloft this weekend. Airmass will be dry through the weekend along with warming temperatures as thermal ridge builds over western Colorado.
1007 AM EDT Fri Oct 6 2023 A cold front will move east across the region today. This will usher in a much cooler airmass as we head into the weekend. In the developing low level CAA, temperatures this afternoon will be fairly seasonable with daytime highs ranging from the mid 60s northwest to the lower 70s southeast. An upper level trough axis will pivot east into the Great lakes and Ohio Valley region tonight into Saturday. Anonymously low H5 heights will be stretched across the eastern CONUS given the amplified upper level trough. Cooler air from Canada will be ushered into the Ohio Valley, providing seasonably cooler temps over the next few days.
Temperature forecast remains on track with highs today being in the low to mid 80s throughout the region. This will bring us a significant surge of cool dry air resulting in cooler than normal morning lows Saturday. Today though enough insolation is expected to result in another day of warmer than normal temperatures.
Temperatures along the Island Chain are currently in the lower to mid 80s with dew points in the mid 70s. The Florida Keys currently remain in between two synoptic scale features with one being a strong fall cold front traversing across the eastern United States while Tropical Storm Philippe continues to churn over the North Atlantic to the south of Bermuda. From synopsis, weak high pressure centered just to the east of Florida will continue to promote light variable breezes through Saturday.
1055 AM EDT Fri Oct 6 2023 Upper pattern changes today as a potent trough sets up over the eastern CONUS for the weekend.
(Today and tonight) Clear skies continue with the Bay Area in the center of the long wave ridge. Some areas are staying warmer than expected this morning, mainly due to adiabatic warming from local down slope flow.
Today's weather set up gradually changes as upper level ridge along the East Coast pushes offshore, and an upper level disturbance pushes into the Southeast. Area of high pressure should keep northeasterly winds and rain free conditions in place across the Gulf waters today.
207 AM PDT Fri Oct 6 2023 Warming and drying trend continues through the weekend as an areas of high pressure shifts east through our region.
High pressure over the region will bring light winds, warm temperatures and mostly clear skies to much of Nevada through the weekend.
731 AM EDT Fri Oct 6 2023 Periods of showers can be expected areawide today ahead of an approaching cold front. Much cooler temperatures, periodic scattered showers, and breezy conditions are then expected this weekend after the front crosses tonight. Showers will spread east this morning with increasing moisture and lift along a pre-frontal trough ahead of a slowly advancing front. Key Message: Much cooler weather /50s/ this weekend with highs 30 degrees below were they were earlier this week. Behind the front, cooler temperatures and breezy conditions are likely as the upper trough deepens over the Northeast. Precipitation chances will linger into Saturday, mostly north of Pittsburgh closer in proximity to the upper low and where northwesterly flow may prompt lake enhancement.
537 AM EDT Fri Oct 6 2023 Periods of showers can be expected areawide today ahead of an approaching cold front. Much cooler temperatures, periodic scattered showers, and breezy conditions are then expected this weekend after the front crosses tonight. Showers will spread east this morning with increasing moisture and lift along a pre-frontal trough ahead of a slowly advancing front. Behind the front, cooler temperatures and breezy conditions are likely as the upper trough deepens over the Northeast. Precipitation chances will linger into Saturday, mostly north of Pittsburgh closer in proximity to the upper low and where northwesterly flow may prompt lake enhancement.
638 AM CDT Fri Oct 6 2023 (Today through Saturday Night ) A cold front was situated acrs NW AR early this mrng where drier air was sloly advecting in behind it, where sfc dewpoints were in the 50s. Expect a decent pre-fntl warmup today with highs ranging fm the 70s to the lower 80s. This bndry represents the leading edge of much cooler and drier air that wl overspread the region. Speeds of 15 to 20 mph will be common, with gusts up to 30 mph expected, especially in the higher elevations. Winds wl diminish later Sat and Sat night as high pressure conts to bld into the Mid- South.
Key Messages: * Strong northwest winds continue through the morning with gusts around 35 mph * Chance of some snow mixed with rain along and east of the Coteau this morning * Widespread frost/freeze due to below freezing temps Friday night As of 3AM CDT, winds continue to be out of the northwest gusting between 30 and 40 mph. Temperatures are in the low to mid 40s across the region. The highest concentration will be in the Sisseton area with a 30% chance of more than a tenth of an inch. With temperatures in the high 30s, there could be just a touch of snow mixed in with the rain. Temperatures will drop into the high 20s to low 30s tonight bringing widespread frost/freeze to our area.
322 AM MDT Fri Oct 6 2023 A broad ridge will continue to advance over the western states today. The low clouds will prevent insolation this morning leading to yet much cooler temperatures today across the plains. High temperatures will fall to 10 to 15 F cooler than normal across the plains, still near normal across the high country. Temperatures here will likely fall below 36 F in many areas but stay above freezing. High pressure ridge aloft will build west of Colorado with decreasing northwest flow aloft this weekend. Airmass will be dry through the weekend along with warming temperatures as thermal ridge builds over western Colorado.
The main adjustment in this update was tonight's lows as a similar setup may result in actual lows being lower than what the high-res guidance is suggesting. MORNING DISCUSSION: Synoptic Setup: Forecast begins with a large cold core trough dipping into the middle third of Canada and the CONUS. Across the western third a large amplitude ridge rides up the coast from California to British Columbia. Father west another trough is moving into the northeast Pacific behind the ridge. The ridge to the west will continue to press into the region shallowing out some of the cold air tonight leading to a warmer conditions with only valley bottoms freezing while ridge tops may maintain upper 30s or lower 40s.
622 AM CDT Fri Oct 6 2023 (Today and tonight) An upper level trough will move east across the Midwest today bringing a cold front south through the Great Plains.
636 AM EDT Fri Oct 6 2023 A potent upper level low pressure system over Ontario into the Upper Midwest will bring showers late today through the weekend.
654 AM CDT Fri Oct 6 2023 A secondary cold front will bring drier air and much cooler temperatures to the Mid-South this weekend.
A secondary cold front will bring drier air and much cooler temperatures to the Mid-South this weekend.
556 AM CDT Fri Oct 6 2023 (Today through Saturday afternoon) It's a bit chilly out there this morning, so make sure to grab a coat as you head out the door! WV satellite shows a large upper level trough progressing across the Great Lakes this morning, keeping us under northwesterly flow aloft with mostly clear skies.
Key Message: Windy today, and much cooler. Should clouds remains in place all day, and they could, we may be as cold as the lower 50s.
853 AM CDT Fri Oct 6 2023 Raised pops to likely as forcing from a digging trough in the upper Midwest was producing a band of rain pushing into our western counties. Key Message: Windy today, and much cooler. Should clouds remains in place all day, and they could, we may be as cold as the lower 50s.
It appears that the cold front has moved across most all locations along and east of I-25 as of 2 AM. After the below freezing temperatures Friday night, the airmass will continue to moderate with minimum temperatures only in the mid to upper 30s for most locations.
128 PM EDT Fri Oct 6 2023 A potent upper level low pressure system over Ontario into the Upper Midwest will bring showers late today through the weekend.
The next cold front now located from western OH through western KY into northern AR will swiftly arrive later tonight. Overnight lows should dip into the lower to middle 40s in southern TN, with middle to upper 40s in north AL.
/29 (Now through Saturday) A large upper trof centered roughly along the Mississippi River valley amplifies while progressing into the eastern states through the period. Lows tonight range from the mid 50s well inland to the mid to upper 60s at the coast, and highs on Saturday range from the lower to mid 70s well inland to the upper 70s/lower 80s near the coast.
1133 AM CDT Fri Oct 6 2023 (Rest of Today) Areas of light rain and drizzle continue to push east-northeast through the area along and in advance of the first of two cold fronts. Elsewhere, clouds and precipitation may hold temperatures in the lower to middle 70s.
A new surge of drier and cooler air is forecast for the overnight period into Saturday with the arrival of a cold front. The drier and cooler airmass stays in place for Saturday with highs in the 70s across most areas and maybe getting into the low 80s across Del Rio. With light winds and clearing taking place across portions of the Edwards Plateau, Hill Country and the I-35 corridor on Saturday night into the overnight hours, temperatures are expected to drop to the low 50s with upper 50s to low 60s across the remainder of South Central Texas.
For some perspective, most nights in August had low temperatures warmer than that. A few isolated (15-20%) showers will be possible overnight and early Saturday morning but as a reinforcing high pressure surges south, drier air will move in ending the possibility of showers for Saturday.
308 PM CDT Fri Oct 6 2023 Key Messages: * Widespread frost/freeze due to below freezing temps late tonight into early Saturday morning. An upper level trough will exit the region to the east tonight, leaving northwest flow in its wake. This flow will continue through the short term period as the region becomes situated between the trough to the east and ridging to the west. At the surface, high pressure settles in over the central part of the country tonight, which will allow the current cloud cover over the area to dissipate. Winds will become light and variable, and in combination with the clearing skies and an already cool start to the evening, will see temperatures fall to below freezing levels overnight. As the high slowly tracks east/southeast on Saturday, will see slightly warmer air get pulled back into the region.
Raised pops to likely as forcing from a digging trough in the upper Midwest was producing a band of rain pushing into our western counties. Key Message: Windy today, and much cooler. Should clouds remains in place all day, and they could, we may be as cold as the lower 50s.
Drier air and cooler temperatures are expected tonight into the weekend following a cold front pushing through this evening. GNC A secondary cold front will bring drier air and much cooler temperatures to the Mid-South this weekend.
Breezy east winds and cooler weather on Saturday with lowland highs in the upper seventies. This reinforcement of cold air advection will result in Saturday being a bit cooler, with lowland highs in the upper 70s.
(This evening through Saturday) A cold front moving southward through the northern Texas Panhandle early this afternoon should arrive in the forecast area around 22Z and exit the area by 05Z. As a result have gone with a mix of the NBM and cooler MOS numbers for tonight's lows. The cool air mass will result in high temperatures about a full ten degrees cooler than normal despite full to nearly-full insolation.
On deck for this evening we have a strong cold front arriving after sunset with a brief period of gusty NE winds.
A cold front is currently pushing through the forecast area. High pressure building in behind the front is tightening the surface pressure gradient and will bring moderate winds in the 15-20 mph range. Current obs in the MO/NE/KS region, as well as the Springfield Airport, are already periodically outperforming guidance, so would not be surprised to see brief periods of sustained winds upwards of 25 mph with gusts up to 30 mph as the front continues to push through this afternoon, despite the low probabilities output by HREF/NBM. As the high pressure system and cold airmass settles over the region tomorrow, high temperatures will reach into the 60-64F range under clear skies. As the high pressure system begins to exit the area Saturday night, lows will be slightly warmer, but only slightly.
The upper trough will swing into the eastern Great Lakes/Ohio Valley on Saturday, while high pressure slips into the central Plains.
As of 230 AM Friday morning, broad northwesterly midlevel flow was present across the central CONUS with a deep trough across the upper Midwest. An area of weak surface ridging was positioned across west-central KS, yielding light winds area-wide. This cold front is progged to traverse the forecast area later this morning into the early afternoon. Behind the front, gusty north winds up to 35 MPH will usher in much cooler temperatures. These gusty winds will briefly overlap with humidity values in the low to middle 20 percent range. Surface ridging will slide into the area tonight, allowing skies to clear and winds to become very light.
In the tropics, Post-Tropical Cyclone Phillippe is located west of Bermuda and is moving northward through the end of the week and into the weekend. To our northwest, deep upper level troughing and an extensive cold front extends southward through the Ohio River Valley and into the central Gulf of Mexico. This trough and cold front will slowly traverse eastward through this evening, then move across Florida on Saturday. This will be a mostly dry cold front as it moves through the area with very little to no rainfall expected. The trough axis and front moves south and east of the area by Saturday night. High pressure building in from the west in the wake of this front will produce northerly winds and help usher in some of the coolest weather we have seen since May.
A cold front is currently making its way into the Texas Panhandle early this afternoon, with temperatures in the 50s and 60s behind the front. Some high clouds will keep lows a bit warmer further south but still expect temperatures to dip down into the lower to mid 50s.
Issued by National Weather Service Grand Junction CO 246 PM MDT Fri Oct 6 2023 The low clouds that were found across much of the metro area this morning and early afternoon have finally started dissipating though the foothills still look like they're hanging on to some broken/overcast skies. Outside of the clouds, little else to speak of as broad northwesterly flow remains across the area and a ridge axis remains just to our west. Overnight, clear skies and calm winds will allow for some decent radiational cooling bringing low temps to at or just below freezing. High pressure remains overhead Saturday with flow varying from west through northwest.
118 PM PDT Fri Oct 6 2023 A high pressure ridge along the West Coast will weaken and drift inland over the weekend.
GOES 16 Visible satellite imagery shows a cloud line hovering over the Island Chain with a couple showers over the Lower Keys. The Florida Keys remain in between two synoptic scale features with one being a strong fall cold front traversing across the eastern United States while Post-Tropical Storm Philippe continues to churn over the North Atlantic, just south of Bermuda. Forecast soundings also show plenty of dry air, especially above 700 mb, with ample moisture remaining in the lowest levels of the atmosphere.
143 PM EDT Fri Oct 6 2023 In the wake of a cold front, high pressure will track southeast from the Great Plains to eastern Texas.
The area will be under northwest flow aloft with upper level ridging in place to the west through the weekend.
19z WV satellite reveals a notable upper trough over the Upper Midwest with a wave embedded in this flow over western IL. Associated cold front has pushed south through the Panhandles today, with this feature now in our southern row of counties. Tonight, post frontal high looks to become centered over KS with subtle surface ridging extending southwestward into our CWA.
(The rest of today ) Strong cold front is beginning to enter northeast Oklahoma at this time and will sweep rapidly southeast across the area this afternoon, with increasing north winds in its wake along with steady or slowly falling temperatures.
236 PM CDT Fri Oct 6 2023 A strong impulse will rotate through the base of the upper trough centered over the western Great Lakes.
A broad ridge will continue to advance over the western states today. The low clouds will prevent insolation this morning leading to yet much cooler temperatures today across the plains. High temperatures will fall to 10 to 15 F cooler than normal across the plains, still near normal across the high country. Temperatures here will likely fall below 36 F in many areas but stay above freezing. High pressure ridge aloft will build west of Colorado with decreasing northwest flow aloft this weekend. Airmass will be dry through the weekend along with warming temperatures as thermal ridge builds over western Colorado.
1220 PM CDT Fri Oct 6 2023 (The rest of today ) Strong cold front is beginning to enter northeast Oklahoma at this time and will sweep rapidly southeast across the area this afternoon, with increasing north winds in its wake along with steady or slowly falling temperatures.
1106 AM MDT Fri Oct 6 2023 Northwest flow aloft will continue today as eastern Utah and western Colorado remain stuck in between an amplifying ridge over the West and a deep trough over the upper Midwest and Great Lakes. The warming trend that we've seen the past few days marches on unabated as highs will climb a few degrees warmer than today and top off roughly 4 to 8 degrees above seasonal norms. Overnight lows will once again bottom out in the 20s and 30s up high and in the 40s and 50s in the lower elevations.
1226 PM CDT Fri Oct 6 2023 Key Messages: - Scattered sprinkles/showers possible during the morning hours as a cold front sweeps through the area.
This has implications on temperatures as overnight lows would be progressively warmer as a function of increased cloud cover. Temperatures will be able to climb into the 50s to near 60 degrees, with our warmer temps expected in the Devils Lake area. This will be in response to a weak thermal ridge passing to our south during the day.
1232 PM CDT Fri Oct 6 2023 (Today and tonight) An upper level trough will move east across the Midwest today bringing a cold front south through the Great Plains.
A cold front is traversing across the Mid-Mississippi River Valley this afternoon, bringing an isolated brief shower.
322 PM CDT Fri Oct 6 2023 Tonight and Tomorrow: Temperatures will be noticeably cooler in the wake of the frontal boundary passage. Conditions will start to clear up this evening as cooler, drier air begins to enter the region. Jacket weather will officially arrive tonight with low temperatures in the low to mid 50s. Temperatures will be awfully peasant Saturday with highs in the low to mid 70s.