Aikyam-Lab/Synoptic-Bench huggingface dataset:
1241 PM CDT Thu Jul 25 2019 As of 08Z Thursday morning broad midlevel ridging continues across the southwestern half of the CONUS. At the surface, troughing across the High Plains continues to deepen with the approaching midlevel low/trough. Otherwise, temperatures are expected to be a few degrees warmer than prior days with highs in the mid 80s.
250 PM EDT Thu Jul 25 2019 High pressure, over the Ohio Valley, will build into the Mid Atlantic states through Friday and it will linger near the area through the coming weekend. The upper trough over the eastern US continues to allow for just enough cold air aloft for isolated showers/storms late this aftn into early this evening mainly close to the Chesapeake Bay and north of RIC. Upper heights gradually build through the weekend as the east coast trough shifts offshore. There is still some slight upper troughiness even on Friday which could in theory allow for a shower or two, but given the warming temps aloft, am not confident enough to put into the forecast.
223 PM MDT Thu Jul 25 2019 Water vapor imagery shows an occluded upper level low in south- central Canada. The center of high pressure has been shifted to the southwestern U. as the low moves east. Infrared and water vapor satellite imagery show a stream of tropical moisture wrapping around the high and into parts of the central Plains. Temperatures will be similar to today with highs in the low to mid-90s. The upper level ridge will slowly slide east from the Desert Southwest toward the High Plains. As it does so upper level short wave troughs will move around its periphery. These troughs will provide several chances for rainfall during this period.
Over the weekend, high pressure over southern California will bring drier and more stable conditions, with only afternoon clouds near the mountains. Also over the weekend strong high pressure aloft will move westward and be centered in the vicinity of southern California.
222 PM EDT Thu Jul 25 2019 Upper air pattern consists of a deep 500 mb trough over the ern half of the U. The strongest height falls with the series of mid level troughs will remain through Canada. Friday into Friday night, as a mid level low/trough moves from Manitoba to northern Ontario, a strengthening low level jet with increasing moisture advection may support some elevated convection early Friday.
Clear skies will remain into this afternoon, but temps will get up to near or just above normal this afternoon as upper level ridging builds in.
946 PM EDT Thu Jul 25 2019 High pressure will build over the region through tomorrow night.
827 PM EDT Thu Jul 25 2019 High pressure over the Ohio Valley will gradually move into PA today and be centered overhead on Friday. However, a weak trough aloft will keep just the slight chance of an afternoon or evening shower in the forecast today. Warmer and more muggy air will be returning on Friday and for the weekend as the high pressure moves off the east coast. Dry low levels and building high pressure will allow fair weather to dominate the pattern this evening. Low temperatures should be around normal with readings in the low to mid 50s through the NW to the low to mid 60s through the Southeast. However, there is still the weak trough from today laying out west-east.
519 PM MDT Thu Jul 25 2019 Current surface map places cold front across eastern North Dakota into central Nebraska.
Latest surface analysis had high pressure centered over the Ohio Valley and southerly return flow, albeit weak, across eastern Iowa and northwest Illinois. Temps were near normal into the low to mid 80s. The humidity has been comfortable with dewpoints only into the lower 60s. Ridging builds in across the central US, bringing with it warmer air and more moisture to the area.
20Z water vapor imagery shows an expansive midlevel ridge over the Four Corners region and a compact area of midlevel cyclonic circulation moving across Saskatchewan, Canada. The airmass over northeast KS remains fairly dry in the low levels, per BUFR soundings, which will limit rain potential this afternoon/evening. Slight low level WAA will allow temperatures to be a touch warmer, which will be the general rule through the weekend as well.
1046 PM EDT Thu Jul 25 2019 High pressure will move in from the west over the next several days. Modified Canadian high pressure will provide The Midlands and CSRA with dry weather through this weekend. Weak high pressure aloft persists over the Southeast U. High pressure will continue to provide dry conditions overnight and through Friday. No fog or stratus development due to relatively dry air in the lower levels.
725 PM EDT Thu Jul 25 2019 High pressure will build over the region through tomorrow night.
/issued 239 PM CDT Thu Jul 25 2019/ (Tonight and Thursday) Quiet weather will continue in the short term, as the subtropical ridge remains the dominant weather feature. Temperatures will be cool again tonight, although not as cool as the past couple of nights with lows mainly in the lower and middle 60s. Temperatures will still remain a bit below normal on Friday, with sunny skies, light winds and afternoon highs in the lower 90s.
950 PM CDT Thu Jul 25 2019 High pressure remains over the Mid-South this evening. Lows tonight will drop down into the lower to mid 60s. /issued 300 PM CDT Thu Jul 25 2019/ Surface analysis this afternoon places a 1023 mb ridge of high pressure over portions of the Middle and Lower Mississippi Valleys. This has resulted in sunny skies and temperatures as of 2 PM CDT in the lower to middle 80s at most locations.
508 PM EDT Thu Jul 25 2019 High pressure will build over the region through tomorrow night.
/Issued 401 PM CDT Thu Jul 25 2019/ The main weather pattern will feature an upper level ridge of high pressure which will dominate the southwest states, southern Rockies, and southern plains over the next 7 days.
732 PM EDT Thu Jul 25 2019 High pressure will move in from the west over the next several days. High pressure moving from the Midwest into the Middle Atlantic States will direct a dry northeasterly flow into the forecast area. Modified Canadian high pressure will provide The Midlands and CSRA with dry weather through this weekend. Weak high pressure aloft persists over the Southeast U. High pressure will continue to provide dry conditions overnight and through Friday. No fog or stratus development due to relatively dry air in the lower levels.
Meanwhile, a weak upper level low as seen by infrared satellite imagery shows some scattered convection developing over the southeast Gulf and drifting into our waters.
/NF/ Tonight through tomorrow (Friday): This stretch of quiet & cooler than normal weather will continue tonight. Overall limited moisture should keep any showers or convection closer to the Gulf Coast & south of the Highway 98 corridor & Pine Belt.
The ridge will continue building through midday tomorrow, but by tomorrow afternoon, the ridge axis will be located across the central zones.
406 PM CDT Thu Jul 25 2019 While today has been slightly warmer than yesterday, dewpoints in the upper 50s to mid 60s have made for another pleasant day. The low for Corpus Christi is 70, and Victoria is 69, both of which will be in jeopardy of being broken.
A weak ridge of high pressure will be over Western Washington through Friday with dry and warmer conditions.
1010 PM EDT Thu Jul 25 2019 High pressure through the weekend.
823 PM EDT Thu Jul 25 2019 High pressure over the Ohio Valley will gradually move into PA today and be centered overhead on Friday. However, a weak trough aloft will keep just the slight chance of an afternoon or evening shower in the forecast today. Warmer and more muggy air will be returning on Friday and for the weekend as the high pressure moves off the east coast. Dry low levels and building high pressure will allow fair weather to dominate the pattern this evening. Low temperatures should be around normal with readings in the low to mid 50s through the NW to the low to mid 60s through the Southeast. However, there is still the weak trough from today laying out west-east. Expect widespread VFR conditions rest of the afternoon as high pressure builds over the area.
Cold front still progressing over our CWA, though motion has slowed some. Friday: Cold front will allow slightly cooler air mass to settle into our CWA Friday with upper low tracking across southern Manitoba. Proximity of upper low raises possibility for shower development across our north (north of Highway 2) during peak heating/period of best low level lapse rates. While CAPE won't be high, it is the type of pattern we can't rule out funnels due to high mid level vorticity near upper low, though this may remain f farther north (will need to monitor afternoon/evening pattern/parameters).
Quiet weather continues over the area as cold front has pushed to the east of the area. A cold front has made its way through all but the far southeast portion of the forecast area this afternoon. It will be cooler with more clouds over the far north central, closer to the upper low that tracks across southern Manitoba.
745 PM EDT Thu Jul 25 2019 Upper air pattern consists of a deep 500 mb trough over the ern half of the U.
911 PM CDT Thu Jul 25 2019 A well-defined short wave trof was evident in water vapor imagery and VWP profiler data this evening stretching from the WI/MN border thru central IA into western MO. This trof was producing a good deal of mid-high clouds across the immediate region. The trof will continue to move eastward overnight and have further increased clouds into Friday morning from a previous update.
Updated at 310 PM EDT Thu Jul 25 2019 High pressure continues to cover the area with little change through tomorrow. Fortunately, humidity levels will remain manageable with dewpoints in the lower 60s, so heat index values will be roughly the same as the actual temp, and overnight lows can still drop into the mid/upper 60s, a bit below normal. The one real chance for precip will be Mon night/Tue as a progressive upper trof pushes through the Great Lakes. Pattern really starts to amplify later in the week with a hot ridge over the Intermountain West, resulting in NW flow from the Upper Midwest into the Ohio Valley.
Highs only reached the low 80s, and Sanford's high of 82F set a new daily record warm low (cool high) - see the RER for more information. The rest of us, generally the southern Space Coast and Treasure Coast, experienced less warmer than average conditions with highs ranging from 85F-90F. Overnight lows will settle into the low to mid 70s.
548 PM CDT Thu Jul 25 2019 Quiet weather continues over the area as cold front has pushed to the east of the area. A cold front has made its way through all but the far southeast portion of the forecast area this afternoon. It will be cooler with more clouds over the far north central, closer to the upper low that tracks across southern Manitoba.
559 PM EDT Thu Jul 25 2019 High pressure will move in from the west over the next several days. High pressure moving from the Midwest into the Middle Atlantic States will direct a dry northeasterly flow into the forecast area. Modified Canadian high pressure will provide The Midlands and CSRA with dry weather through this weekend. Weak high pressure aloft persists over the Southeast U. High pressure moving from the Midwest into the Middle Atlantic States will direct a dry northeasterly flow into the forecast area, with winds 5 to 10 kts this afternoon. Deeper moisture will remain well east of the area ahead of upper troughing, but there remains enough mid-level moisture for fair weather cumulus.
946 PM EDT Thu Jul 25 2019 High pressure over the Ohio Valley will build into the region through Friday. Upper heights gradually build through the weekend as the east coast trough shifts offshore. There is still some slight upper troughiness even on Friday which could in theory allow for a shower or two, but given the warming temps aloft, am not confident enough to put into the forecast.
712 PM EDT Thu Jul 25 2019 High pressure through the weekend.
325 PM PDT Thu Jul 25 2019 Hot temperatures this week with widespread triple digits at the lower elevations. The net effect of a broad upper ridge over the Four Corners and a weak offshore trough has transported anomalous monsoonal moisture to northern California. Such locations will likely cap out in the low 100s based on recent surface observations. As the upper ridge across the Four Corners expands north and west, temperatures will rise well into the triple digits over the weekend.
813 PM CDT Thu Jul 25 2019 Minor adjustments to sky cover were made due to increasing clouds from the north detected by satellite thanks to northerly flow aloft from the upper level high located over New Mexico. At the surface, high pressure located in the Great Lakes region is allowing for light winds from the east and southeast across eastern Oklahoma and northwestern Arkansas. Higher elevations may see lows in the upper 50s while lower elevations and city centers may see slightly warmer temperatures in the lower to mid 60s. This had allowed for winds to vary from east to southeast to south across Eastern Oklahoma and Northwest Arkansas as the region gets more on the backside of the high pressure. temperatures and dewpoints were running a couple degrees warmer this afternoon compared to 24-hrs ago across much of the CWA.
855 PM CDT Thu Jul 25 2019 Wx map shows the cool high pressure over the Eastern U. Area temperatures ranging from the mid 70s to lower 80s over coastal SE TX/coastal S LA where the easterly flow has brought a return to typical conditions (dewpoints in the lower 70s here).
While today has been slightly warmer than yesterday, dewpoints in the upper 50s to mid 60s have made for another pleasant day. The low for Corpus Christi is 70, and Victoria is 69, both of which will be in jeopardy of being broken.
401 PM CDT Thu Jul 25 2019 The main weather pattern will feature an upper level ridge of high pressure which will dominate the southwest states, southern Rockies, and southern plains over the next 7 days.
Would need the low level jet at this time of the evening to help start up additional activity, and think that focus will remain east of this FA. Cold front still progressing over our CWA, though motion has slowed some. Friday: Cold front will allow slightly cooler air mass to settle into our CWA Friday with upper low tracking across southern Manitoba. Proximity of upper low raises possibility for shower development across our north (north of Highway 2) during peak heating/period of best low level lapse rates. While CAPE won't be high, it is the type of pattern we can't rule out funnels due to high mid level vorticity near upper low, though this may remain f farther north (will need to monitor afternoon/evening pattern/parameters).
431 PM MDT Thu Jul 25 2019 A surge of monsoonal moisture rotating around the west and north quadrants of a huge ridge will continue providing the focus for convection the next 24 hours.
739 PM EDT Thu Jul 25 2019 High pressure over the Ohio Valley will build into the Mid-Atlantic region through Friday. The upper trough over the eastern US continues to allow for just enough cold air aloft for isolated showers/storms late this aftn into early this evening mainly close to the Chesapeake Bay and north of RIC. Upper heights gradually build through the weekend as the east coast trough shifts offshore. There is still some slight upper troughiness even on Friday which could in theory allow for a shower or two, but given the warming temps aloft, am not confident enough to put into the forecast.
622 PM EDT Thu Jul 25 2019 High pressure will maintain generally dry and seasonable weather into the weekend.
This will keep us under northerly flow through the first part of the weekend until the ridge moves far enough west to result in gradually increasing northwesterly flow.
Dewpoints have come up several degrees from previous nights, which will keep low temperatures a few degrees warmer tonight than the past few days. In addition, with the lower dewpoint depressions tonight, should see more patchy fog over our eastern counties as well, and added mention mainly near lakes and river east of I-65.
/Issued 813 PM CDT Thu Jul 25 2019/ Minor adjustments to sky cover were made due to increasing clouds from the north detected by satellite thanks to northerly flow aloft from the upper level high located over New Mexico. At the surface, high pressure located in the Great Lakes region is allowing for light winds from the east and southeast across eastern Oklahoma and northwestern Arkansas. Higher elevations may see lows in the upper 50s while lower elevations and city centers may see slightly warmer temperatures in the lower to mid 60s. This had allowed for winds to vary from east to southeast to south across Eastern Oklahoma and Northwest Arkansas as the region gets more on the backside of the high pressure. temperatures and dewpoints were running a couple degrees warmer this afternoon compared to 24-hrs ago across much of the CWA.
High pressure aloft centered over the southern Rockies will maintain the moisture tap into Utah through Friday night. High pressure remains centered near the Four Corners region this evening, allowing moisture to continue spreading into Utah.
Maliawco Previous Discussion: Afternoon Forecast: High Pressure is forecast to build back over the region Friday, with high pressure over the area on Saturday. For Saturday night: An approaching trough of low pressure is forecast to bring some moisture and storms into the region, mainly from the Missouri River Basin South.
Today Through Saturday Night Another quiet and unseasonably cool morning continued across the Natural State with only some patchy high clouds observed over north/eastern AR moving around the periphery of high pressure located over the Southern Rockies. At the surface, winds were relatively calm overnight, with limited cloud coverage in place, has resulted in efficient radiational cooling allowing temperatures to drop into the lower 60s. As this happens, winds will become increasing southerly with moisture returning in the lower levels. On Saturday, upper level high pressure located over the Southern Rockies is expected to retrograde a bit, however upper flow will remain northwesterly and highly amplified. Temperatures will be several degrees warmer topping out in the mid 80s to the lower 90s, or closer to seasonal levels.
255 AM CDT Fri Jul 26 2019 06Z surface data has high pressure over the mid-Atlantic coast with a weak front in the Plains.
Seasonable temperatures are expected this afternoon as the thermal ridge axis begins to bulge east southeast, but humidity should remain in check without a strong connection to the Gulf.
Otherwise, large high pressure dome was situated over the western half of the CONUS. Very pleasant conditions are expected Friday and Saturday as high pressure aloft remain in control over the region.
115 AM EDT Fri Jul 26 2019 High pressure over the Ohio Valley will build into the region through Friday. Upper heights gradually build through the weekend as the east coast trough shifts offshore. There is still some slight upper troughiness even on Friday which could in theory allow for a shower or two, but given the warming temps aloft, am not confident enough to put into the forecast.
Overnight weak flow will allow for a little diurnal drop, so aiming for lows in the lower to mid 60s.
353 AM CDT Fri Jul 26 2019 Upper level ridging will generally prevail across the intermountain west and high plains into early August.
1141 PM MDT Thu Jul 25 2019 A surge of monsoonal moisture rotating around the west and north quadrants of a huge ridge will continue providing the focus for convection the next 24 hours. The trough will pass over the forecast area during the day and be east of the Continental Divide by about 9 PM MDT Saturday evening.
1236 AM EDT Fri Jul 26 2019 High pressure will maintain generally dry and seasonable weather into the weekend. An isolated shower/thunderstorm may develop during the afternoon/early evening hours each day across the southeast ridges due to enough orographic lift and a weakly unstable environment.
The ridge centered over the southern Rockies/Desert Southwest will build back into the northern Rockies Friday.
Deterministic global models and GEFS mean are in general agreement that upper high will remain over the southwest while a upper trough will deepen over the eastern CONUS.
Weak ridging and continued downslope wind gradient will keep mostly sunny and dry conditions across the area today. Temperatures this afternoon will push into the lower 90s.
234 AM EDT Fri Jul 26 2019 High pressure will crest over the region today before shifting east into the maritimes on Saturday.
Tonight Through Saturday The upper level ridge over the western US is going to de-amplify somewhat during the period, but Arkansas will remain on the extreme eastern edge of this ridge, and northerly flow aloft will continue. The end result will be dewpoints rising 5-10 degrees during the short term period, with warmer temperatures as well.
The 00Z guidance is in agreement that the upper-level ridge currently camped out over the western half of the country will build eastward into our region by the weekend.
320 AM EDT Fri Jul 26 2019 High pressure will maintain mainly dry and seasonable weather through the weekend. The trough axis is progged to be over the ridges of WV and MD this afternoon as convective thresholds are reached. Low level ridging should maintain mainly dry weather through the weekend. The exception Saturday is again in the WV/MD ridges where isolated afternoon showers or thunderstorms are possible with weak diurnal instability.
403 AM EDT Fri Jul 26 2019 With high pressure situated east of the area, there will be an increase in heat and humidity this weekend.
1232 AM EDT Fri Jul 26 2019 High pressure will build across the region through Saturday.
Updated 1120 PM MDT Thu Jul 25 2019 (06Z/26th TAFs) Broad upper level high pressure ridge will remain over the region through Friday night.
216 AM CDT Fri Jul 26 2019 The 07Z water vapor imagery showed an upper ridge centered over the NM/AZ state line. Meanwhile an upper level closed low was noted north of ND and another upper low was over the gulf of Alaska. At the surface, a trough of low pressure extended from the northern plains through the southern high plains. Surface ridging was centered east of the MS river valley. Surface ridging along the TX gulf coast has held the deeper moisture well south of the forecast area. In general highs may be a degree or two warmer than yesterdays due to the warm air advection. So have highs forecast to be fairly similar or slightly warmer than yesterday. By Saturday morning, zonal midlevel flow will reside across the much of the CONUS as the western ridge de-amplifies.
234 AM CDT Fri Jul 26 2019 The Ozarks remains on the eastern periphery of a summertime high pressure system.
253 AM CDT Fri Jul 26 2019 Early morning satellite imagery shows an upper low spinning across southern Canada with clouds from the low moving drifting into northern North Dakota. The low will continue to move east today, and this should gradually take the clouds and rain with it. This would again lead to some potential fire weather concerns, but it appears the stronger winds and lower relative humidity values don't quite line up today (winds are weaker where the relative humidity values are the lowest).
A weak cold front is expected to push through the area Saturday afternoon bringing some recovering humidity. Behind the cold front, the forecast area will be drier once again, although some isolated afternoon showers and storms are still possible in the north.
1014 PM CDT Thu Jul 25 2019 Low temperatures were slightly increased across northern Oklahoma for tonight Increasing mid to high level clouds are expected across northwest Oklahoma from weakening convection across the High Plains. Overall, a warmer night is expected than the previous two nights.
441 AM EDT Fri Jul 26 2019 High pressure will remain over Pennsylvania today and Saturday.
Otherwise an upper high will remain centered around the Co/Nm border area through the week with some sub-tropical moisture moving over the CWA.