Aikyam-Lab/Synoptic-Bench huggingface dataset:
740 AM EDT Wed Sep 6 2017 Aviation Cool and unsettled weather will continue through Thursday night with highs generally in the lower 60s.
730 AM EDT Wed Sep 6 2017 Cool weather with periodic shower chances can be expected until high pressure builds this weekend. Changes for the predawn update included further precip probability adjustments for areas east and south of Pittsburgh based on the latest radar trends of showers streaming up the flank of the deep, Great Lakes-to-Lower Mississippi Valley trough. Near term temperature is projected about 10 degrees under the averages given the flanking position on the parent trough and persistent boundary layer moisture/dewpoints.
604 AM CDT Wed Sep 6 2017 WV imagery this morning showing a stagnant pattern with an anomalous upstream ridge across the wrn half of the CONUS and a deep longwave trof to the east. At the sfc, large area of high pressure was building southward into the Central Plains.
629 AM CDT Wed Sep 6 2017 Temperatures this morning range from mid and upper 30s across much of the MN side of the FA and southern RRV with high cirrus keeping the DVL basin and ND side of the northern RRV in the low 40s.
The strong upper ridge will dominate today for dry smokey conditions. Moisture on the western edge of the ridge near the approaching west coast trough will lead to isolated afternoon and evening showers and thunderstorms near the Oregon/Nevada border.
Weak high pressure will persist over the area through Thursday while hurricane Irma moves to the west northwest near 15 mph.
An amplified upper level trough extended from north of Lake Superior southwest across northern MO into southeast KS early this morning. The upper trough will dig southeast into the mid and lower MS river valley by 12Z WED. It will feel cooler and drier Today with highs only reaching the mid 70s. There may be a few mid level clouds in the morning but these clouds will shift Southeast of the CWA by Noon as the H5 trough axis digs southeast across MO. Overnight lows will drop into the mid 40s across much of the area with a few locations dipping down into the lower 40s across the northern counties of the CWA. Highly amplified upper ridge across the western CONUS will remain parked across the Rockies, keeping the Plains in northwesterly mid/upper flow.
949 AM EDT Wed Sep 6 2017 Expect showers and thunderstorms today and this evening along and ahead of a cold front.
The upper low pressure trough was over the eastern US, with a strong upper northwest flow into AR. This upper low pressure trough which will move to the eastern US is expected to steer Hur. Today Through Thursday Night Cold front that brought convection to much of AR on Tue, was located to the S of the state early this mrng. NWLY winds behind the front contd to usher cooler and drier airmass in the FA. A long wave trof was situated along the MS valley this mrng.
/issued 405 AM CDT Wed Sep 6 2017/ Canadian high pressure has settled over the Mid South as an anomalously deep upper level trough continues to dig across the eastern third of the United States. The upper trough should quickly begin to lift out to the northeast by Thursday with upper heights rising over the region. There still remains a rather persistent spread in model tracks over the weekend as Irma nears the western periphery of the western Atlantic ridge and turns poleward in a weakness left behind by the departing upper trough and an approaching weak upper level low over the Mississippi Valley. Considering the upper trough is departing, it introduces higher uncertainty in the eventual track and when Irma makes the northward turn.
1242 PM EDT Wed Sep 6 2017 Expect showers and thunderstorms today and this evening along and ahead of a cold front.
An upper high near the Four Corners Region today will build in over the southern Rockies and far West Texas by tonight and Thursday.
A strong cold front is in the process of moving through the southern Tennessee Valley early this morning. With time, a mostly clear sky should develop across most of the region by daybreak (12z) as this cooler, drier air mass filters in. Thus, despite a mostly clear sky and plenty of sunshine, highs in the low to mid 70s are expected for most locations later today. This will allow temperatures to plummet in the lower 50s across much of the Valley.
728 AM EDT Wed Sep 6 2017 Periods of showers are expected across the North Country through the end of the work week as a slow moving upper trough passes through the region.
1101 AM EDT Wed Sep 6 2017 A deep upper level trough will dig into the Ohio Valley region through Thursday before shifting eastward by the end of the workweek. Trough is digging into the area today. Dry conditions and more unseasonably cool temperatures are expected tonight, with lows ranging from the mid 40s in the NW to around 50 degrees towards the lower Scioto Valley. Although the primary upper level trough axis will be shifting northeast of the Ohio Valley by Thursday, various pieces of upper level energy will continue to stream southeast into the area within the mid-level northwest flow. Period begins with H5 trof over the Great Lakes.
Currently watching the cold front slide through the area with an outflow boundary now along the coastline. At 1 am the cold front had just cleared the office and was generally along a line from Tuscaloosa to Calera to Anniston and sliding southward. Clearing areawide after 7 pm and temperatures will drop to the low 50s areawide, with even a few upper 40s in the normally cooler location across the far north.
558 AM MDT Wed Sep 6 2017 08z surface analysis had high pressure over the CWA with some thin CI floating by. Temperatures have dipped into the mid 30s over southwest SD near center of anticyclone. Today and Thursday, upper ridge remains in place over the western US with trough over the east.
For 12z Aviation discussion below The amplified trough over the Great Lakes will continue to swing toward the Eastern seaboard today, with the shower threat following suit with an eastward shift. The large scale flow looks to become much less amplified as we head through the longer term, with the eastern trough lifting out and modest ridging working into the central CONUS.
Today Through Thursday Night Cold front that brought convection to much of AR on Tue, was located to the S of the state early this mrng. NWLY winds behind the front contd to usher cooler and drier airmass in the FA. A long wave trof was situated along the MS valley this mrng.
932 AM EDT Wed Sep 6 2017 A southwest flow is in place aloft with a trough amplifying over the eastern U. At the surface, high pressure has been shunted southward a bit over the peninsula as a relatively weak frontal boundary continues to drop into the southeast. An area of scattered showers and storms over the Nature Coast and Tampa Bay regions have been ongoing this morning in onshore flow and with the trough in place. High pressure will remain over the region through the day with light winds and seas expected.
1037 AM EDT Wed Sep 6 2017 A series of troughs will drop southeast through the region through Thursday night.
Sfc obs indicate that all the lower clouds and fog which formed earlier this morning have burned off, leaving behind a mainly VFR afternoon. The most robust cumulus are currently across the lower Atchafalaya basin and Vermilion Bay where area radar shows some scattered showers have developed. a cool front will move out of the Rockies and into the Plain States while closer to home high pressure dominates the region but this will break down a bit in the coming days as moisture streams out of the gulf and into the region.
with an elongated ridge with axis aligned roughly in a NE fashion from the Gulf Coast to the Mid Atlantic and into New England. In the lower levels. broad high pressure will exist over the eastern CONUS with a cold front extending from Ontario S thru the Great Lakes region and into the central/southern Plains.
1258 PM CDT Sat Sep 16 2017 For the 18Z TAFs, the leading windshift of an associated cold front has pushed into parts of the southern Texas Panhandle. Some concern for MVFR cigs at KGUY and KDHT behind the cold front late tonight into Sunday morning, and have incorporated this at both terminal sites during this time period. Latest surface analysis depicts leading edge of the wind shift associated with a cold front has already moved across much of the OK Panhandle and northwest third of the Texas Panhandle, and have adjusted wind grids to account for this during the afternoon hours. Cold front drops into northern part of forecast area before 12z Sunday, bringing a VFR overcast stratocumulus layer to GUY following frontal passage.
Satellite loop showed scattered flat cumulus developing over the higher terrain this afternoon, mainly from the Mojave Preserve through the Clark County mountains to northern Mohave County, with clear skies elsewhere.
127 PM CDT Sat Sep 16 2017 Afternoon GOES Water Vapor imagery showing a vigorous mid-level trough rotating northeast from the Dakotas into northwest MN. This was driving a surface cold front eastward into the area. main focus will be on convection along/ahead of the cold front pushing through the area. Cooler air filtering into the area after midnight will drop temperatures into the 50s and lower 60s. Cooler/drier air filters into the area Sunday as high pressure builds in. The high will begin to move off to the east Sunday night as a weak mid-level trough ejects northeast out of the Central Plains.
1258 PM CDT Sat Sep 16 2017 Updated the forecast to make minor changes to the high temperatures and sky cover. As we remain on the periphery of an expansive high pressure area over western New York, dry weather will continue through the afternoon over our area.
The cold front has made it through about half of the forecast area this morning. There will be lower clouds across the area through mid day and with the cold advection the temperatures will be quite a bit cooler. The cooler air continues across the area on Sunday.
In addition, we expect any ongoing convection over the lower Trans Pecos region to remain west of Val Verde county.
131 PM EDT Sat Sep 16 2017 High pressure centered to the east will keep dry weather across the Ohio Valley today through Sunday.
Upper level ridging remains positioned over the region, but will gradually shift further east through the period as an upper level trough digs into the Rockies and northern Plains. Similar temperatures can be expected today, with highs in the low 90s across the Coastal Bend, to upper 90s across the Brush Country. Tomorrow will be a couple degrees cooler with higher moisture and more cloud cover across the region.
221 PM CDT Sat Sep 16 2017 This morning an upper trough extends down from MT to CA with a ridge extending from FL to TX.
405 PM EDT Sat Sep 16 2017 A slightly drier pattern continues for a few days as the region sits under the influence of high pressure aloft.
213 PM CDT Sat Sep 16 2017 Some high-based convection has been ongoing through the morning into the early afternoon from the low rolling Plains in Texas up into southwest and north-central Oklahoma. The cold front seen in observations across central Kansas into the Oklahoma and Texas panhandles is expected to move into northwest Oklahoma this evening and may make it to near the I-40 corridor by early morning. The front should become quite diffuse by tomorrow and may have mostly diminished by late in the day as strengthening low level flow will occur in response to another trough approaching the Rockies.
325 PM EDT Sat Sep 16 2017 High pressure will remain in place over the northeast U.
Lows will be in the mid 70s, with highs from the lower 90s east to near the century mark west, with mid to upper 80s at the beaches.
557 PM EDT Sat Sep 16 2017 A large ridge of high pressure will dominate our weather for much of the upcoming 7 days.
Onshore flow will continue across the area through late tonight before surface and upper level flow becomes more northerly as Jose moves north across the Atlantic and ridging builds across the lower Mississippi. Hurricane Jose will be well offshore and moving north as a large area of high pressure stretches from New England to the Gulf of Mexico.
230 PM MDT Sat Sep 16 2017 Main forecast issues will be the chance of precipitation followed by high cool to make the high temperatures through tomorrow. If cloud cover does not increase as fast as I think it will, the low temperatures will need to be lowered from what I have in there.
VFR conditions will continue through the next 24 hours with high pressure in control. /issued 421 AM CDT Sat Sep 16 2017/ SHORT TERM (Now through Sunday): 500-mb ridge over northeast Mexico and south Texas this morning will continue to provide subsidence across deep south Texas for today. The mid level ridge will gradually move eastward over the Gulf of Mexico through the weekend.
1115 AM MDT Sat Sep 16 2017 Currently, GOES16 water vapor imagery shows mountain wave pattern across southern Colorado with leading edge of cooler air racing south through the plains. Today, Northern Rockies upper low and associated energy will move across Montana and Wyoming into the Dakotas through the day, with primary lift remaining well north of CWA. Temperatures will be quite a bit cooler across the plains, with highs in the 70s to near 80. It will be just a few degrees cooler across the high valleys and mountains, with 60s to lower 70s, and 40s to 50s, respectively.
Recent real-time data, PV analysis, computer simulations and forecast model soundings indicate that isolated pops in combination with areas of low clouds/fog will be possible tonight, with the highest potential of low-grade pops favoring portions of Teller, El Paso and Kiowa counties.
141 PM EDT Sat Sep 16 2017 Aviation High pressure will bring fair and warm weather today and into Sunday. There will be a chance of showers and thunderstorms by Sunday afternoon as a cold front moves through. Surface and upper ridging continues to bring fair and warm weather into Sunday, but moisture is streaming north today and tomorrow. A weak cold front moves into western zones by Sunday afternoon and there is enough instability to allow for a few thunderstorms.
633 PM EDT Sat Sep 16 2017 A large ridge of high pressure will dominate our weather for much of the upcoming 7 days.
355 PM EDT Sat Sep 16 2017 High pressure centered to the east will continue to extend into the Ohio Valley through tomorrow.
145 PM EDT Sat Sep 16 2017 Weak high pressure over the region will remain in place through the weekend. High temperatures in the low-mid 80s appear on target. The increasing cloudiness across the east will limit insolation, yielding high temperatures Sunday a couple of degrees cooler than today.
1203 PM CDT Sat Sep 16 2017 Somewhat complex setup for shower/storm chances today-tonight, with a lot of small scale features to contend with - aside from the front/trough combo for tonight. The trough's associated north-south running cold front moves in tonight, gradually making its way into eastern WI Sunday morning.
138 PM EDT Sat Sep 16 2017 Hurricane Jose to remain over the western Atlantic through the weekend with weak high pressure residing across the Midlands and CSRA. Toward daybreak winds will slowly begin increasing as the pressure gradient tightens slightly between weak high pressure over the area and Hurricane Jose well southeast of the region in the western Atlantic. High pressure aloft will dominate the weather pattern across the Southeast U.
230 PM EDT Sat Sep 16 2017 Weak high pressure over the region will remain in place through the weekend. High temperatures in the low-mid 80s appear on target. The increasing cloudiness across the east will limit insolation, yielding high temperatures Sunday a couple of degrees cooler than today.
A couple hours after sunrise the fog will dissipate leaving scattered clouds and temperatures warming into the lower and mid 80s. High pressure over the northeastern US will weaken and move east. A weak low pressure system moving through Canada will swing a frontal boundary through the Ohio Valley. while at the same time a trough will begin to deepen over the western US.
Clear skies overnight could produce patchy fog with the lowest visibilities occurring at KTRI Sunday morning.
305 PM EDT Sat Sep 16 2017 High pressure at the surface and ridging aloft will remain in place across the Lower Ohio Valley through the remainder of the weekend.
This will continue to be the case through daybreak as the low level CU field increases. Temperatures will be similar as well, with afternoon highs in the 80s to around 90 in the warmer spots.
350 PM CDT Sat Sep 16 2017 As of 19z Saturday afternoon, a H5 trough was positioned from the northern Rockies into the central High Plains. At the surface, a center of low pressure resided across the OK/TX panhandle region. A cold front extended northeastward from the low pressure through north central KS. A capping inversion near H8 has precluded thunderstorm development and for that matter a deep Cu field along the aforementioned cold front. At this point, sfc based convection appears unlikely through the afternoon and evening hours along the cold front. As for Sunday, the cold front will become stalled in southeast KS. North of the front, much cooler temperatures are in store with highs Sunday afternoon reaching the middle 70s.
207 PM EDT Sat Sep 16 2017 A deep layer ridge will bring continued pleasant and unseasonably warm conditions to the North Country during the next 5 to 7 days.
Early morning surface analysis had a 1022mb high centered over the Ohio Valley that was ridging back across our CWA. This ridge will remain in place through Sunday morning while mid level ridging strengthens over our CWA from the western Gulf. This will contribute to slightly warmer than normal temperatures today and tonight with a little greater coverage of mostly diurnally driven convection.
Another area of showers will lift from South Dakota into the James River Valley, leaving portions of south central ND in a lull with the lowest pops. This could be complicated by fog/low clouds that might develop given the high amount of rainfall that occurred yesterday, and what is expected today. Transitory ridge slides through Sunday, providing for a dry day with highs rebounding into the lower to mid 60s.
324 PM CDT Sat Sep 16 2017 The approaching cold front has slowed its progression into the forecast area allowing plenty of sun paired with a southerly surface flow to get temps into the upper 80s and low 90s. Temps tonight will be warmer than last night by a few degrees due to the incresing cloud cover overnight and the south wind.
Stratus has also developed across most of western Nebraska behind a cold front. Northeast winds continued to gust to round 25 mph across southeastern areas as cooler air pushed into the region. An upper trough from Montana through northwest Colorado will lift quickly northeast today into the Dakotas. High pressure and dry weather will be brief during the day on Sunday. Cooler temperatures will also continue. Highs are expected to be in the low 70s across the forecast area which is below normal for this time of year.
Southwest upper level flow will continue through tonight as a rather vigorous mid level trough rotates through the northern Plains and into southern Canada by tonight. This will push a surface cold front towards eastern Kansas late today and into the forecast area tonight.
342 PM EDT Sat Sep 16 2017 A large ridge of high pressure will dominate our weather for much of the upcoming 7 days.
133 PM EDT Sat Sep 16 2017 High pressure builds into the region through the weekend through early next, however moist conditions will continue with fog expected each night and morning. Ridging builds in farther on Sunday as moisture from Jose nears from the south. Skies will become sunny from west to east under increasing subsidence from the high pressure once fog dissipates. The week begins with an upper level ridge through the northeast united states, and a strong blocking high downstream of Iceland in the Atlantic. South of the ridge, Hurricane Jose will try to push northwards around a Bermuda high.
Dewpoints are also remaining elevated this afternoon in the lower to middle 60s, resulting in some increased humdity. The trough of low pressure that has produced the clouds and precip will slide north/northeast across Northern Minnesota into Western Ontario. The wrinkle or challenge for strong development could be the path of the low pressure, which would place the U. by mid- morning Sun, ushering in slightly cooler and more seasonal airmass to the U. By Sunday morning, expect the winds to pick back up to around 20 to 30 knots as a cold front pushes east across the lake.
347 PM EDT Sat Sep 16 2017 A deep layer ridge will bring continued pleasant and unseasonably warm conditions to the North Country during the next 5 to 7 days.
/issued 426 AM CDT Sat Sep 16 2017/ Persistence appears to be a reasonable forecast today and Sunday, with an upper level ridge positioned over the lower MS River valley.
340 PM CDT Sat Sep 16 2017 No major changes to the forecast through the upcoming week as North Texas will primarily be under the influence of subtropical ridging resulting in above normal temperatures and little chance for precipitation.
Forecast/guidance temps about 5 degrees warmer than today look good.
A transitory weak ridge will move through the CWA today. A weak ridge of high pressure is moving overhead, but sct to bkn high clouds between 15-25K FT AGL are still impacting the region. The short term will start out with a short wave upper ridge over the region today, with the upper ridge axis passing across the CWA during the day today.
This afternoon and evening the moisture transport and shear will pick up as the cold front approaches. Sunday the cold front will slow down and stall along the Missouri and Oklahoma boarder.
257 PM EDT Sat Sep 16 2017 Weak high pressure over the region will remain in place through the weekend.
But again, these showers have no upper level support at the current time, and most of the higher chances of precipitation occurs once it moves into the instability axis late tonight. A more active pattern is expected as the upcoming week progresses, mainly due to the formation of a trough in the western CONUS with a ridge in the eastern CONUS, putting the Upper Mississippi River Valley region in pronounced southwest flow aloft which will allow several organized systems to impact this region.
Temperatures will drop to the upper 20s to lower 30s in the Flathead and Mission Valleys by early Sunday morning, while farther west and south, increasing high cloud cover late tonight will likely keep temperatures a few degrees warmer. Regardless, those with sensitive vegetation in the lower valleys of northwest and west-central Montana should take precautions to avoid frost/freeze damage.
132 PM MDT Sat Sep 16 2017 A large trough seen on water vapor images over MT/WY will move past the CWA this evening. Thus, only expect frost to be patchy, with the Pine Ridge area likely the coldest. Models are then in very good agreement with warmer and drier weather for Sunday.
123 PM EDT Sat Sep 16 2017 High pressure will continue to dominate the region through Sunday.
A deep and broad trough is forecast to develop across the western U.
Issued by National Weather Service MIAMI FL 353 PM EDT Sat Sep 16 2017 The Upper and Middle Keys had mostly clear skies today while the Lower Keys experienced mostly cloudy skies. The Miami AMX Doppler radar detected a few showers developing southwest of the Lower Keys and moving towards the Straits of Florida and a few more moving into Florida Bay. This will bring drying trend to the area with slightly warmer temperatures over the Keys.
Per persistence of ridging influences sfc/aloft, other than some passing sct CU and/or sct/bkn CI at times, SKC conditions expected.
207 PM MDT Sat Sep 16 2017 Upper trough swinging across northern Wy into the northern plains now with energy clipping the north part of the CWA and setting off some showers. Min temps Sunday morning should get close to freezing over parts of the northern and western CWA so have opted to post a frost advy for those typically cool areas for later tonight into Sunday morning.