Aikyam-Lab/Synoptic-Bench huggingface dataset:
Light scattered showers continue, generally east of the Apalachicola River at this hour as a broad area of mid-level low pressure acts upon the abundant moisture in places to generate convection. Widespread cloud cover and widespread convection through the day will inhibit the diurnal curve, with highs likely only rebounding into the lower to mid 80s.
Tonight Through Tuesday An upper ridge of high pressure continues over the eastern U. with an upper low over the west coast. The ridge will tend to weaken through Tuesday and the upper low will move into the Rockies Monday night and move to the northwest through Tuesday. With high pressure weakening to the east of Arkansas and a few short waves moving through the area, chances for showers and thunderstorms will increase.
A weak upper low parked over eastern Texas today, combined with surface ridging extending from the western Atlantic into the eastern Gulf of Mexico, will maintain onshore wind flow and above seasonal deep-layer moisture and general unsettled weather conditions through the near term forecast period. Low temperatures tonight in the lower 70s inland and mid 70s at the coast.
/issued 347 PM EDT Sun Jun 11 2017/ Latest surface analysis show a broad high pressure centered over the western Atlantic waters gradually lifting north allowing for wind flow to remain more easterly across South Florida today. Through the week: high pressure over the western Atlantic waters keeps an easterly flow through mid week before shifting winds more southerly as ridge drifts east into the Atlantic waters the rest of the week. As a result, most of the higher convection can be expected along the interior as winds become more southerly by the end of the week. Overnight low temps will range around the low to mid 70s through much of the period.
1142 PM MDT Sun Jun 11 2017 A closed 550mb low pressure center was located over northern California early this afternoon with broad southwest flow ahead of it covering much of the country. At the surface a cold front extended from northeast Nebraska through Oberlin and Tribune Kansas into southeast Colorado. On Monday the upper low is forecast to be over much of Nevada and during the day is expected to pivot its way into southern Idaho. At the start of the period, upper ridging dominates the eastern half of the country while an upper low digs into the Pacific Northwest. On Tuesday, the upper low travels towards the northern Plains, pushing a cold front through the region.
Otherwise hot and dry conditions continue with highs in the 95 to 100 degree range and lows in the lower 70s.
231 AM CDT Mon Jun 12 2017 Low-level moisture to increase today with dewpoints forecast to climb into the lower 70s. Afternoon high temperatures forecast to climb into the mid to upper 80s with heat index values in the low to mid 90s. Upper-low to gradually diminish with ridging to build in its place over the next couple of days. Afternoon showers and thunderstorms to become isolated by midweek as mid and upper-level ridge become fully established.
Large deformation zone (an area where precipitation forms) is moving from north to south through the Sierra and western Nevada this morning as a strong low pressure swings through central Nevada. Western Nevada will continue to see moderate to heavy rain showers this morning before the low pressure and associated with the deformation band moves out of the region this afternoon.
A low pressure system to our south was spinning moisture back into our region and this is expected to continue overnight.
/issued 321 AM CDT Mon Jun 12 2017/ Ridge rules. High pressure will continue to dominate the wx pattern this week even as upper low over the Great Basin this morning moves east.
Mainly dry weather is expected through the week as high pressure builds into the area. The upper level low has started to drift off to the southeast. This is allowing ridging to start building into the area. Temperatures will be warmer than yesterday, but still below normal in the inland areas. Tuesday the weak ridging starts to flatten and flow becomes more zonal. Temperatures in the inland areas will warm to the low 80s on Tuesday.
The most recent BRO sounding shows a fairly dry atms in place over the region with the exception of the lowest layers of the atms where some shallow moisture resides. /issued 152 PM CDT Fri Nov 3 2017/ SHORT TERM (Now through Saturday Night): Mid-level ridging centered over northern Mexico and south Texas will provide subsidence across deep south Texas through the period. Overnight low temperatures will generally be in the upper 60s to the lower 70s area wide. High temperatures will generally range from the mid 80s near the coast to the low to mid 90s inland.
615 PM CDT Fri Nov 3 2017 Large expanse of high pressure, centered just north of the Minnesota Arrowhead, has us in an easterly flow after yesterday's frontal passage. However, highest PoP's overall will be over northern Illinois, as the warm front sharpens up in that region. Have lingered some showers east of a Galesburg- Olney line past midday, but most areas will be dry and warmer tomorrow afternoon.
Raised temperatures by a few degrees to match observations which were a tad warmer. With dewpoints still forecast to reach into the low 70s overnight, the gap between the temps and dew points will begin to narrow. The upper ridge over the Rio Grande Valley will help keep a decent cap in place.
Cigs look to be BKN-OVC in the 15-25kft range, once the high cloud deck invades the area. However, a stream of high clouds looks likely in moist southwest flow aloft and this may knock a few degrees off and have forecast most highs in the low 80s, which falls a bit short of records. The other thing the high clouds may do is to some extent limit vertical mixing and therefore keep wind speeds and gusts a bit in check.
Light snow continuing to slowly saturate the low levels with observations indicating -sn across NE ND and into the Red River valley this afternoon.
705 PM EDT Fri Nov 3 2017 A diffuse cold front will move into the area tonight and linger Saturday.
Lows tonight are expected to be in the upper 50s north to the lower 60s inland and mid to upper 60s near the coast. Highs Saturday will be in the lower to mid 80s. High pressure will ridge across the waters tonight.
The leading edge of the precipitation was across Clark County since it has taken a little time to saturate the lower levels of the atmosphere thanks to dew points in the mid 20s. Then another short wave trough will bring some more snow to this area during the latter part of the overnight and early Saturday morning. Meanwhile further south, a short wave trough will bring another round of precipitation to areas along and south of Interstate 94 from after midnight into early Saturday afternoon. On Saturday night, a cold front will move quickly southeast through the area.
/15/ Prior discussion below: Rest of Today through Tomorrow: Current surface analysis has high pressure to our east over Georgia at 1022 mb, a weak cold front to our north running through western Tennessee and Central Arkansas. Warm moist air is continuing to pump into our area from the south and bring temperatures slightly above normal, highs ranging in the lower 80s. High temperatures for tomorrow evening will once again be above average as an upper level ridge start to form from the west, scattered showers and a few isolated thunderstorms will develop late into the evening, mainly north of I-20 and west of I-55.
Rest of Today through Tomorrow: Current surface analysis has high pressure to our east over Georgia at 1022 mb, a weak cold front to our north running through western Tennessee and Central Arkansas. Warm moist air is continuing to pump into our area from the south and bring temperatures slightly above normal, highs ranging in the lower 80s. High temperatures for tomorrow evening will once again be above average as an upper level ridge start to form from the west, scattered showers and a few isolated thunderstorms will develop late into the evening, mainly north of I-20 and west of I-55.
1017 PM EDT Fri Nov 3 2017 A large area of high pressure over southern Canada will build into the region tonight.
718 PM EDT Fri Nov 3 2017 A cold front will shift offshore this evening. High pressure will build in from the west overnight through Saturday. The high pressure will shift offshore Saturday night as a warm front approaches from the southwest.
1149 PM CDT Fri Nov 3 2017 Its been a cool dreary day for most across the Ozarks as an inverted trough makes its way through the region. Visibilities have improved along the Arkansas state line where cloud cover has thinned ahead of the trough.
958 PM EDT Fri Nov 3 2017 Dry conditions can be expected until a warm front returns shower chances later Saturday.
Chattanooga Airport, TN 60 75 62 77 / 50 30 20 10 Knoxville McGhee Tyson Airport, TN 59 73 59 77 / 30 30 20 10 Oak Ridge, TN 59 73 60 76 / 40 20 20 10 Tri Cities Airport, TN 56 69 54 73 / 30 30 20 10.
1040 PM EDT Fri Nov 3 2017 Currently - Gentle to moderate north to northeast breezes prevail across the Florida Keys due to a ridge across the southeast and the Gulf of Mexico and a trough just east of the Bahamas. Short Term Update - Gentle to moderate north to northeast breezes will continue through the overnight period due to the high to our north and the trough to the east. Gentle to moderate north to northeast winds will prevail across Keys waters due to a high to our north and a trough aligned east of the Bahamas. On this date in 1876, the high temperature in Key West hit 91 degrees.
1022 PM EDT Fri Nov 3 2017 A cold front will push through the area this evening. Cold front is now Southeast of the area and have updated decreased PoP across the SE CWA over the next few hours with the front already past. Cold front is almost through the area and as of 2230Z the front was almost to Beckley and it continues to drift southeastward. Latest surface analysis indicates a cold front was located along the Ohio River. In addition, cooler air will filter in with lows tonight in the 40s north to mid 50s across the far southern counties. The boundary will also move back north into the region as a warm front.
Will also have to see if any freezing drizzle happens to work into southern portions of the FA. However, with temperatures just below freezing, this is making for some slippery travel. Light snow continuing to slowly saturate the low levels with observations indicating -sn across NE ND and into the Red River valley this afternoon.
1050 PM EDT Fri Nov 03 2017 A cold front will drop southward through central North Carolina overnight, bringing clouds and cooler temperatures for Saturday.
635 PM CDT Fri Nov 3 2017 Its been a cool dreary day for most across the Ozarks as an inverted trough makes its way through the region. Visibilities have improved along the Arkansas state line where cloud cover has thinned ahead of the trough.
Large expanse of high pressure, centered just north of the Minnesota Arrowhead, has us in an easterly flow after yesterday's frontal passage. However, highest PoP's overall will be over northern Illinois, as the warm front sharpens up in that region. Have lingered some showers east of a Galesburg- Olney line past midday, but most areas will be dry and warmer tomorrow afternoon.
1052 PM EDT Fri Nov 3 2017 A cold front will push through the area this evening. Cold front is now Southeast of the area and have updated decreased PoP across the SE CWA over the next few hours with the front already past. Cold front is almost through the area and as of 2230Z the front was almost to Beckley and it continues to drift southeastward. Latest surface analysis indicates a cold front was located along the Ohio River. In addition, cooler air will filter in with lows tonight in the 40s north to mid 50s across the far southern counties. The boundary will also move back north into the region as a warm front.
1126 PM EDT Fri Nov 3 2017 A cold front will shift offshore this evening. High pressure will build in from the west overnight through Saturday. The high pressure will shift offshore Saturday night as a warm front approaches from the southwest.
953 PM EDT Fri Nov 3 2017 A cold front will exit the area early this evening. High pressure will build in from the west tonight and crest over the region late Saturday.
1043 PM EDT Fri Nov 3 2017 A large area of high pressure over southern Canada will build into the region tonight.
1039 PM EDT Fri Nov 3 2017 A diffuse cold front will move into the area tonight and linger Saturday.
1204 AM EDT Sat Nov 4 2017 A large area of high pressure over southern Canada will build into the region tonight.
There have also been some reports of light freezing drizzle from Jamestown and south central North Dakota, which may also clip the winter weather advisory area along the ND/SD border. Think this area should stay just light snow, with no freezing drizzle. Light snow continuing to slowly saturate the low levels with observations indicating -sn across NE ND and into the Red River valley this afternoon.
559 PM MDT Fri Nov 3 2017 The southwest flow aloft over our region is expected to moisten beginning Saturday with that moisture from the eastern Pacific likely to start producing snow in earnest at some of the higher mountain elevations by Saturday evening with rain at lower elevations.
928 PM PDT Fri Nov 3 2017 Mid and high clouds over the region are keeping temperatures a few degrees warmer compared to this time yesterday, especially over mountain areas.
Still keeping an eye on the potential for freezing drizzle later tonight as low stratus settles in. Snowfall amounts through this evening, and the threat for freezing drizzle in NE SD and western MN Saturday morning will be the main forecast concern. Buffer soundings are even suggesting patchy freezing drizzle developing late tonight into the early morning hours on Saturday in the winter weather adv area. If patchy freezing drizzle develops, than the winter weather adv will need to be extended. The pattern looks cooler than normal with a slight warmup by midweek. A cold front will push through Saturday night with cooler air overtaking the region through most of the week.
747 PM EDT Fri Nov 3 2017 A large area of high pressure over southern Canada will build into the region tonight.
1024 PM MDT Fri Nov 3 2017 Upper level analysis shows some weak ridging over the northern plains, and a trough moving into the Pacific Northwest. Forecast soundings indicate the potential for some freezing drizzle periodically across far northwestern SD tonight. Freezing precip looks more likely farther north, and with little to no ice accumulation expected, will hold off on headlines for now. Fog will continue into Saturday morning, dissipating towards midday as a cold front pushes into the region and winds become northwesterly and a little breezy.
Proton Previous Discussion: The upper-level trough centered over Puget Sound this morning will begin to swing across the Northern Rockies tonight. This trough Will have a moisture train originating from the NW Coast while sending a frontal boundary through the local region tonight. There had been reports of light freezing rain in our southeast and further south and east of the forecast areas. Therefore updated the WSW for Prairie and Wibaux Counties for light freezing rain. The inverted trough shifts east after sunrise Saturday sending most of the snowfall to the northeast.
746 PM EDT Fri Nov 3 2017 A cold front will push through the area this evening. Cold front is almost through the area and as of 2230Z the front was almost to Beckley and it continues to drift southeastward. Latest surface analysis indicates a cold front was located along the Ohio River. In addition, cooler air will filter in with lows tonight in the 40s north to mid 50s across the far southern counties. The boundary will also move back north into the region as a warm front.
850 PM EDT Fri Nov 03 2017 A cold front will drop southward into North Carolina tonight, bringing clouds and cooler temperatures for Saturday.
518 PM MDT Fri Nov 3 2017 Upper level analysis shows some weak ridging over the northern plains, and a trough moving into the Pacific Northwest. Forecast soundings indicate the potential for some freezing drizzle periodically across far northwestern SD tonight. Freezing precip looks more likely farther north, and with little to no ice accumulation expected, will hold off on headlines for now. Fog will continue into Saturday morning, dissipating towards midday as a cold front pushes into the region and winds become northwesterly and a little breezy.
At the surface, a cold front extends from the Northeast US coast down into Northern AR, is hung up in the terrain of Western AR and Southeast OK where it is more shallow, and then extends southwest into TX as a stationary front. Back in the cooler air, there are uncertainties such as the stratus across Northeast OK and whether this cloud deck will scatter out by morning. Warm front will lift north through much of the area on Saturday as low level moisture surges north.
Meanwhile, a cold front was sitting from near Bowling Green KY to Clarksville TN to Memphis TN as of 18Z.
1103 PM EDT Fri Nov 3 2017 A cold front will exit the area early this evening. High pressure will build in from the west tonight and crest over the region late Saturday.
923 PM EDT Fri Nov 3 2017 A cold front will shift offshore this evening. High pressure will build in from the west overnight through Saturday. The high pressure will shift offshore Saturday night as a warm front approaches from the southwest.
The cold front that moved through the area early this morning will stall out to our south over Tennessee overnight before drifting back north into Kentucky on Saturday.
735 PM EDT Fri Nov 3 2017 A cold front with patchy drizzle and rain showers is crossing the region this afternoon.
The good news is the high resolution models suggest the precipitation is mostly gone for the night. Weak warm front south of airports will lift slowly northward tonight, with IFR vis/cigs at CKV becoming LIFR overnight with occasional drizzle.
Still kept the mention of freezing drizzle across the southwest and south central and also kept a mention of fog most everywhere, but dense fog in the southwest. Webcams, surface/highway reports, and observers all indicate that a transition to light freezing rain has occurred in southwest ND. With drier air aloft and a low level saturated layer with weak omega/upward vertical motion, light freezing rain/drizzle will become the dominate weather regime southwest and south central tonight through Saturday morning. Model soundings are too slow with this change and thus have expanded the light freezing rain into south central ND now versus later. Will continue to monitor the light freezing rain trends into this evening.
In addition to the low ceilings, some patchy fog will also be possible from ALI/VCT/LRD with vsbys in the 3 to 5 SM range. Mid level high pressure centered over central and southern Mexico is progged to shift closer to S TX tonight. GFS/ECMWF/NAM deterministic predict a quasi-zonal upper pattern over the CONUS at the beginning of the period, yet an upper trough is predicted to move/lift across SCNTRL/SERN Canada and contribute to the SWD penetration of a cold front into the SRN Plains, yet the front is then expected to stall.
High pressure will prevail at the surface across our area, and combined with weak upper level flow this will result in continued dry conditions across our area.
935 PM EDT Fri Nov 3 2017 NNE wind surge on the west side of the inverted trough currently just west of the northern Bahamas spread south over the SE coast and adjacent Atlantic earlier this evening. Temperatures will remain above normal with lows in the mid-upper 60s and highs in the lower 80s along the coast and mid 80s inland.
Stratus will remain socked in, with fairly steady temperatures ranging from the low 50s to around 60 degrees. The cold front that moved through the area early this morning will stall out to our south over Tennessee overnight before drifting back north into Kentucky on Saturday.
757 PM EDT Fri Nov 3 2017 Dry conditions can be expected until a warm front returns shower chances later Saturday.
The good news is the high resolution models suggest the precipitation is mostly gone for the night. Weak and diffuse warm front remains south of airports this evening, but will lift slowly northward overnight.
202 AM EDT Fri Apr 28 2017 Warm front lifts through late today into tonight.
415 AM EDT Fri Apr 28 2017 Through this weekend: Latest surface analysis indicates a longwave trough sagging along the eastern CONUS with a cold front draped southward from upstate New York down to northern Alabama. Clockwise flow around the high provided light southeast flow to the CWA yesterday. High pressure will continue to build aloft today with the 00Z GFS generating a 590 dm high pressure cell directly overhead. Strong subsidence from the high will produce very warm, near record breaking maximum temperatures.
Deep layer ridging will build back into the region during the day, yielding some of the warmest temperatures of the season thus far.
138 AM EDT Fri Apr 28 2017 A break in the activity today under high pressure. Dry weather returns today under high pressure. Any cooler air behind the front will quickly eject to the north as strong warm air advection takes over. Models are having a difficult time determining the position and timing of a warm front on Saturday and also the extent and strength of Eastern CONUS ridge. Zonal flow this evening will be replace by the building eastern ridge overnight. One thing the models do somewhat agree on, most of the precipitation tonight and Saturday will be over the northern half of the region, north of the surface warm front.
423 AM EDT Fri Apr 28 2017 Warm front lifts through late today into tonight.
535 AM EDT Fri Apr 28 2017 A break in the activity today under high pressure. Dry weather returns today under high pressure. Models are having a difficult time determining the position and timing of a warm front on Saturday and also the extent and strength of Eastern CONUS ridge. Zonal flow this evening will be replace by the building eastern ridge overnight. One thing the models do somewhat agree on, most of the precipitation tonight and Saturday will be over the northern half of the region, north of the surface warm front.
441 AM CDT Fri Apr 28 2017 Precipitation chances will increase as early as this afternoon as an upper level low moves southeastward across the four corners region. We will also see this lift complemented by a cold front late Friday night into early Saturday morning. After an early morning cold front early Friday morning, low level winds will quickly swing back around to the southeast by the afternoon. This will be the case until another cold front arrives late tonight into early Saturday allowing better low level moisture to fill in.
Slowly warming temperatures expected through the weekend as the upper trof that has lingered over the Rockies shifts east and Pacific ridge edges toward the California coast. Weak front associated with this low could pull showers across the northern zones tonight but overall dry conditions should limit qpf.
The stationary boundary will lift to the north as a warm front today as an upper level ridge takes hold along the Atlantic Seaboard. Temperatures will run around 5-10 degree warmer than yesterday with the higher heights aloft and decent mixing.
A low pressure system over the Great Lakes continues to lift northward into Canada. It's associated cold front continues to move through our region with the majority of the rain affecting our western Panhandle, SE AL and SW GA counties. As the front lifts northeastward, high pressure begins to build in from the south. With an increase in cloud cover overnight, lows will be relatively warm in the low 70s. Cloud cover then decreases allowing temps to rise into the low 90s on Friday and Saturday.
140 AM EDT Fri Apr 28 2017 High pressure over the Atlantic will keep a moderate SE wind flow across South Florida through the next 24 hours. Despite the low level moisture, little in the way of showers expected.