Aikyam-Lab/Synoptic-Bench huggingface dataset:
/issued 249 PM CDT Thu May 27 2021/ Convection continues to develop across Missouri ahead of a cold front that stretches across Northern Missouri into Eastern Kansas. The remnants will work the atmosphere over for Friday as the cold front moves into the region except for portions of Northeast Mississippi. Temperatures will be cooler behind the front with highs in the mid to upper 70s. High pressure will begin to settle over the Ohio Valley by Friday Night and will remain in place throughout the holiday weekend. Temperatures may begin warming by late in the weekend into Memorial Day as upper ridging begins to occur over the area.
621 PM PDT Thu May 27 2021 A cold front is bringing scattered showers and gusty southwest winds for the region.
Still expect enough clearing across the northeast cwa with lows in the lower 30s. An upper level low pressure currently over the region will continue pushing eastward tonight, with showers generally ending from west to east. The biggest question in the short term is whether or not clouds clear off enough to allow temperatures to drop below freezing.
The main cold front will move across the area this evening bringing an end to storms from west to east tonight. High pressure will build into the region on Friday with afternoon highs expected to rise only into the 60s. Expect some clouds to linger through the morning before clearing in the afternoon with the passage of the upper level trough.
However, they may be thin enough to allow temperatures to drop to freezing or below late. Warmer temperatures on the way for the weekend.
Otherwise, we are looking at a quiet night of weather under high pressure aloft. Next trof and cold front arrives tomorrow afternoon bringing a chance of showers and thunderstorms. JKL Skies have cleared for most of the area, but the lower clouds have been hanging around in southeast Montana with the departing low pressure system. Given the temperatures will be nearing freezing in those areas could see some frost development. This will drag a cold front across the area late in the morning and through the afternoon.
710 PM EDT Thu May 27 2021 Rain returns Friday and Friday night with crossing low pressure. The warm front will begin to move into the area by about 09Z with showers developing before 12Z. As the warm front ahead of the low continues to track into the area, the low appears to be a bit further north than previous runs.
631 PM CDT Thu May 27 2021 Weak ridging will allow for quiet weather to continue through Friday. Cooler air will also continue to push into the region keeping surface temperatures cooler than the last few days. High temperatures will only rise into the 60s tomorrow with a few isolated locations possibly rising into the low 70s. Overnight low temperatures tonight will be quite chilly ranging from the low 30s across the Pine Ridge to the low 40s in southwest Nebraska.
High pressure across the waters will shift south this weekend as a weak front stalls out over the northern Gulf of Mexico.
Showers taper off quickly by this evening as the front moves east and an upper level ridge building with a thermal trough deepening along the southern coast tonight.
Temperatures have been running a bit higher than we had going, and much of the model guidance is a bit warmer than previous runs. As the low pressure system over the Central Plains continues to track east tonight, high pressure will push southward into the FA. Cloud cover has already thinned along and north of the highway 2 corridor, with light winds.
Gusty winds will continue for the next several hours as a cold front works its way across the area.
Latest surface analysis had the cold front extending from north of MCI to TOP southwest to near ICT at 20Z. For tonight expect the front to move south of the area as the mid level trough moves eastward across the Plains. Cooler temperatures will filter southward with lows falling to the 40s to low 50s.
817 PM EDT Thu May 27 2021 A weak cold front will spark a few showers and thunderstorms in northwest North Carolina this afternoon. By Friday afternoon, a more potent cold front will provide widespread showers and thunderstorms. Cooler and damp conditions are expected for this weekend, before things begin to warm up again and we dry out. A weak cold front is drifting southward across the Mid Atlantic this afternoon. However, it is not really going to provide a cooler air mass but rather drier air as noted with lower dewpoints in the model soundings. The cold front should stall later tonight and retreat northward as a warm front. A more potent cold front with a compact upper level trough will approach the Appalachian Mountains from the west by Friday afternoon, which should trigger widespread showers and thunderstorms.
516 PM PDT Thu May 27 2021 A cold front is bringing scattered showers and gusty southwest winds for the region.
Latest guidance suggested that freezing temperatures were possible over these areas, particularly eastern portions of the counties extended into. Over the far west, winds look to hold high enough with return flow to keep temps above freezing. A Freeze Warning for sub-freezing low temperatures tonight into Friday morning highlights the short term forecast period. To the east under high surface pressure and ridging aloft, surface temperatures should be colder, with good potential for sub- freezing lows across central and portions of western North Dakota. On Friday, the next approaching trough and associated surface pressure falls will create breezy southerly winds across the region.
Surface analysis shows a cold front extending from south central Iowa into northeast and south central Kansas then into western Oklahoma. Much cooler conditions will move in behind the cold front for Friday and Friday night. Highs Friday will be about 10 to 15 degree cooler than today, and about 10 degrees cooler than normal with values in the middle 60s to middle 70s. Lows Friday night will 15 to 20 degrees cooler than tonight, with readings in the upper 40s to around 50 degrees.
Potential for late night and early morning patchy fog to develop over inland areas, with the highest likelihood occuring near and west of the I-75 corridor. Overnight low temperatures will drop down into the mid to upper 60s for much of the forecast area with temperatures along the coastline dropping into the lower 70s.
At that time a weak cold front will shift winds at MAF/HOB to a more easterly direction. Friday, easterly upslope flow will drive the dryline into far west Texas, w/initiation farther west over the higher terrain than today. A cold front will approach from the north, although the NAM has slowed it somewhat from previous runs. Steep mid-lvl lapse rates and dcapes also in excess of 2500 J/kg on the higher terrain will again favor big hail and damaging winds for much of the area.
A cold front has moved through Baker City and Burns OR this evening, with gusty winds up to 30 mph along the front. High temperatures will be around 10 degrees cooler on Friday with breezy conditions.
614 PM CDT Thu May 27 2021 (This evening through Friday) Strong to severe thunderstorms will continue into the evening across most of the area as a cold front moves into minimally- capped environment (per 18Z special upper air sounding). Currently, as storms form along the aforementioned cold front later this afternoon, there may be a brief window for some discrete storms.
The current forecast has low temperatures in the low to mid 40s. This area will also have the warmest temperatures with highs in the low to mid 70s. Low temperatures are expected to be in the low 50s.
Currently, a cold front is moving southwest across the area with the front expected to hang up around the Pecos River later this morning. This includes near the Stockton Plateau, along the dryline in SE NM, and then along the lifting warm front in the Permian Basin.
302 AM CDT Fri May 28 2021 Early this morning a cold front was pushing its way through the area and should be east of the area during the early morning hours. Meanwhile, an upper level low will rotate across southern Wisconsin today, carving out a trough all the way into Missouri. This low will then shift eastward into the Ohio Valley tonight. Temperatures will be much cooler, with highs ranging from the just the lower 60s in central Missouri, to the lower 70s in south central Missouri and lows tonight in the mid and upper 40s.
329 AM CDT Fri May 28 2021 A cold front will work its way through the southeast US. Based the pops for the most part on the high resolution CAMs models.
150 AM EDT Fri May 28 2021 Rain returns today and overnight with crossing low pressure. Showers will overspread the region this morning as a warm front moves into the area. A trailing trough tonight and into the day on Saturday will lead to much cooler temps and intermittent shower activity through the day on Saturday.
Pattern Synopsis/Forecast: Split flow pattern across the Midwest this afternoon with a mid level trough/circulation over the North/South Dakota border, deeper closed low over NE Quebec and confluent flow in between the two across the western Great Lakes. Further north, strong deformation axis and area of enhanced precip extends across Wisconsin westward to the vicinity of the upper low. But given warmer air aloft just nosing into northern Lower Michigan and above freezing sfc temps, believe precip will be mostly rain, although there could be some wet flakes mixed in across the higher terrain later on. Low pressure continues to track by to our south Friday morning taking any leftover showers across far southern counties along with it. Upper level ridging then builds in from the west which holds through much if not all of the remainder of the period.
Any fog will dissipate quickly after sunrise Friday/ Much like today, have 20-30% chances in southeast Alabama in closer proximity to the approaching trough/cold front. Lows tonight will fall into the upper 60s with highs Friday in the low to mid 90s. A weakening cold front is anticipated to approach the forecast area over the beginning part of the weekend helping to cool temperatures a few degrees and bring an increase in rain chances across the forecast area. Much of the activity from Friday afternoon will remain off to the northwest but as the upper level trough pivots through on Saturday afternoon isolated to scattered convection will develop in the vicinity of the front and also with some help of the seabreeze.
1201 AM CDT Fri May 28 2021 (This evening through Friday) Strong to severe thunderstorms will continue into the evening across most of the area as a cold front moves into minimally- capped environment (per 18Z special upper air sounding). Currently, as storms form along the aforementioned cold front later this afternoon, there may be a brief window for some discrete storms.
A cold front approaches from the north meanwhile, then progresses through much of the area late Friday afternoon into Friday evening. A positively tilted upper trof which extends from the northern/central Plains into eastern Canada amplifies substantially while moving into the eastern states through Saturday. As the upper trof continues to advance into the eastern states and amplify along with the front moving through the area, the deep layer flow becomes northerly which in turn ushers much drier air into the forecast area. Lows Friday night range from the lower to mid 60s west of I-65 to mostly upper 60s east of I-65. Highs on Saturday will be cooler and range from 80 to 85 west of I-65 to mostly mid 80s east of I-65.
1211 AM EDT Fri May 28 2021 High pressure will build toward Maine from the west later tonight into Friday. Low pressure will pass south of the area this weekend as high pressure remains across the region.
1248 AM EDT Fri May 28 2021 Rain returns today and overnight with crossing low pressure. Showers will overspread the region this morning as a warm front moves into the area. A trailing trough tonight and into the day on Saturday will lead to much cooler temps and intermittent shower activity through the day on Saturday.
354 AM CDT Fri May 28 2021 Latest surface analysis depicts low pressure centered near KSTL and a cold front extending southwestward into southwest MO. As the cold front moves through, it may ignite some additional scattered showers and a few isolated storms by midday into the afternoon east of the Mississippi River. These winds will also be ushering in cooler temperatures, with values falling in the afternoon across the northwest half of the cwa. This is due to a mid level trough over the Ohio Valley that will produce overcast conditions for the vast majority of Saturday.
232 AM EDT Fri May 28 2021 A weak cold front will spark a few showers and thunderstorms in northwest North Carolina this afternoon. By Friday afternoon, a more potent cold front will provide widespread showers and thunderstorms. Cooler and damp conditions are expected for this weekend, before things begin to warm up again and we dry out. A potent cold front with a compact upper level trough will approach the Appalachian Mountains from the west by Friday afternoon, which should trigger widespread showers and thunderstorms. A combination of the clouds, rain, and high pressure wedging south will keep temperatures on the cooler side for Saturday.
Latest surface analysis had the cold front extending from north of MCI to TOP southwest to near ICT at 20Z. For tonight expect the front to move south of the area as the mid level trough moves eastward across the Plains. Cooler temperatures will filter southward with lows falling to the 40s to low 50s. High pressure will build into northeast Kansas on Friday and remain over the area on Saturday keeping temperatures cool and dry conditions.
358 AM EDT Fri May 28 2021 The first return of more appreciable rain chances in some time arrives today ahead of a cold front. This front will progress into the region as an upper trough drops from the Upper Midwest into the southern Great Lakes area today. Scattered coverage will increase and spread southeastward into the evening ahead of the surface cold front. Convection will push southeastward toward Middle Georgia into tonight as the cold front pushes through north Georgia. Cooler temperatures make a return tonight and Saturday behind the cold front.
1133 PM MDT Thu May 27 2021 A subtle ridge over northern Utah shifting atop a shallow trough in central Arizona have created split flow aloft and majority of the CWA currently resides in between the two systems. Best chance for storms will concentrate over these ranges between 21-00Z this evening, as a sliver of energy from the lifting trough maximizes. The next Pacific NW trough pushes split flow east of the Divide overnight, leaving southwest veering to zonal flow aloft. Upper-level split flow will develop over the region this weekend with a strong wave moving across southern Canada and another weak trough dropping south across the Great Basin.
Aside from a few CAMs, the majority of NWP guidance is unrepresentative of the forward propagation of this system, which should persist (if not increase) overnight as the southwesterly low-level jet strengthens downstream from a mid-level trough digging through the Mid-MS Valley region. The cold front and convection should exit our southeast counties between 01-03Z. The upper trough will continue to dig into the upper OH and TN valley on Saturday with deep layer north-northwest flow and strong cold air advection. Temperatures will struggle reach the lower to middle 60s atop the higher Cumberland Plateau areas, with upper 60s to lower 70s optimistic at this point for valley areas.
1247 AM CDT Fri May 28 2021 Weak ridging will allow for quiet weather to continue through Friday. Cooler air will also continue to push into the region keeping surface temperatures cooler than the last few days. High temperatures will only rise into the 60s tomorrow with a few isolated locations possibly rising into the low 70s. Overnight low temperatures tonight will be quite chilly ranging from the low 30s across the Pine Ridge to the low 40s in southwest Nebraska.
Garuckas Chattanooga Airport, TN 86 55 72 52 78 / 100 40 10 0 0 Knoxville McGhee Tyson Airport, TN 84 55 67 50 73 / 100 80 20 10 0 Oak Ridge, TN 83 52 67 49 74 / 100 70 20 0 0 Tri Cities Airport, TN 82 55 67 49 69 / 100 100 30 10 10.
Winds will stay light and southwesterly tonight, but it looks like we become gusty Friday afternoon as a cold front swings through the area.
The region will be between high pressure to the southeast and a trough to the north through Friday.
312 AM CDT Fri May 28 2021 Today-tonight: North-northeast low level flow will advect cooler temperatures into the area today. Weak flow tonight as ridge moves across. Temperatures should be a bit warmer.
A positively tilted upper trof which extends from the northern/central Plains into eastern Canada amplifies substantially while moving into the eastern states through Saturday. As the upper trof continues to advance into the eastern states and amplify along with the front moving through the area, the deep layer flow becomes northerly which in turn ushers much drier air into the forecast area. Lows Friday night range from the lower to mid 60s west of I-65 to mostly upper 60s east of I-65. Highs on Saturday will be cooler and range from 80 to 85 west of I-65 to mostly mid 80s east of I-65.
Temperatures have been running a bit higher than we had going, and much of the model guidance is a bit warmer than previous runs. As the low pressure system over the Central Plains continues to track east tonight, high pressure will push southward into the FA. Cloud cover has already thinned along and north of the highway 2 corridor, with light winds. The period begins with a large upper trough swinging through the area on Saturday bringing a cloudy, breezy, and relatively cool start to the holiday weekend. A few showers will also be possible along and ahead of the trough passage but ensembles continue to show little in the way of accumulation.
210 AM EDT Fri May 28 2021 While high pressure at the surface is still trying to hang on, there is a slow moving 500mb short wave over the area that may bring enough instability to allow for a few showers, and possibly a couple of thunderstorms to develop in the interior today. However, the chances are still small, with moisture still on the lower side, as evident by the dew points forecast to be in the mid 60s in that area today. By Saturday, a stronger 500mb trough approaches the area, further eroding the high pressure, and allowing some additional moisture to advect into the area. With the system really just taking shape and a cold front still over north Florida, the convection should remain isolated and confined to the afore mentioned area.
456 AM EDT Fri May 28 2021 Rain returns today and overnight with crossing low pressure. Showers will overspread the region this morning as a warm front moves into the area. A trailing trough tonight and into the day on Saturday will lead to much cooler temps and intermittent shower activity through the day on Saturday.
WARMER DAY ON TAP WITH A GRADUAL INFLUX OF CIRRUS FROM THE WEST AND BY LATE MORNING EXPECTING FEW/SCT SHALLOW CU TO DEVELOP IN THE SOUTHWEST AND EXPAND INLAND. MUCH WARMER MONDAY WITH HIGHS IN THE UPPER 60S TO LOWER 70S. THE COLD FRONT MOVES INTO NW AREA OF SETX LATE MONDAY AFTERNOON OR MORE LIKELY IN THE EVENING.
/ISSUED 244 AM CST SUN JAN 24 2016/ HIGH PRESSURE OVER THE SOUTHEASTERN STATES WILL KEEP DRY WEATHER CONDITIONS OVER THE MID SOUTH TODAY AND TONIGHT. SOUTHERLY LOW LEVEL FLOW AROUND THE WESTERN PERIPHERY OF THE HIGH WILL ALLOW FOR SLIGHTLY WARMER TEMPERATURES THIS AFTERNOON. MOISTURE WILL SLOWLY INCREASE AHEAD OF THIS SYSTEM AHEAD OF AN EASTWARD MOVING COLD FRONT. WARMER CONDITIONS CAN ALSO BE EXPECTED BY MONDAY AHEAD OF THE COLD FRONT.
AND ALSO WILL MENTION SOME PATCHY FOG AND FREEZING DRIZZLE IN THE HIGHER TERRAIN AROUND DETROIT LAKES TO PARK RAPIDS AND PUBLIC REPORTS INDICATE SOME FZDZ. BUT A SHORT WAVE TROUGH WILL MOVE THROUGH THE AREA LATER TONIGHT INTO MONDAY MORNING.
OTHERWISE, MOST LOCATIONS WILL REMAIN DRY OVER THE REGION TODAY AS AN UPPER LEVEL RIDGE CONTINUES TO BUILD ALONG THE WEST COAST. THE RIDGE WILL CONTINUE TO BUILD THROUGH MIDWEEK AND RESULT IN A SLIGHT WARMING TREND WITH AFTERNOON TEMPERATURES REACHING INTO THE LOW TO MID 60S FOR MOST LOCATIONS AND UPPER 60S BY MIDWEEK IN THE WARMEST INLAND VALLEYS.
513 AM CST SUN JAN 24 2016 THE FORECAST HAS BEEN CORRECTED FOR A CHANCE OF FREEZING DRIZZLE TONIGHT. HIGH CLOUDS SHOULD CONTINUE ACROSS THE FCST AREA TODAY AND A WEAK COLD FRONT SHOULD DROP THROUGH THE FCST AREA THIS AFTN. THE RAP WAS THE WARMEST MODEL WITH 50S SOUTH BUT THE COLD FRONT AND HIGH CLOUDS SHOULD KEEP HIGHS IN THE 40S. ALSO WILL SEE TEMPS AROUND THE FREEZING MARK FOR THE AFTERNOON WHERE STRONGEST WINDS ARE LOCATED.
Lows will be more mild in the lower 40s, except for upper 30s along the I-10 corridor where winds will be light.
655 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL MOVE IN FOR TODAY AND MONDAY.
428 AM PST SUN JAN 24 2016 A BROAD TROUGH OF LOW PRESSURE OVER THE WESTERN STATES WILL KEEP HIGH TEMPERATURES TODAY AROUND 5 DEGREES BELOW AVERAGE.
905 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL REMAIN ANCHORED OVER THE OHIO VALLEY THROUGH TONIGHT. THE HIGH WILL MOVE OFF THE ATLANTIC SEABOARD ON MONDAY AS LOW PRESSURE AND A COLD FRONT MOVE TOWARD THE REGION FROM THE WEST.
This will allow warmer air to move into the area, so along with the sunshine, temperatures should go above normal for the first time in more than in a week.
1031 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL BUILD EAST OVER THE AREA THROUGH TONIGHT BEFORE SHIFTING OFFSHORE.
WINDS ARE LIGHT FOR THE MOST PART ALLOWING TEMPERATURES TO DROP INTO THE LOWER TO MIDDLE 30S ACROSS MUCH OF THE AREA. A TROUGH WILL BE PASSING THROUGH THE CENTRAL PLAINS IN THE MORNING HOURS AND A WEAK FRONTAL BOUNDARY SHOULD MOVE INTO THE HILL COUNTRY BY THE AFTERNOON HOURS.
15Z SURFACE ANALYSIS PLACES A 1028 MB RIDGE OF HIGH PRESSURE OVER MIDDLE TENNESSEE. /ISSUED 244 AM CST SUN JAN 24 2016/ HIGH PRESSURE OVER THE SOUTHEASTERN STATES WILL KEEP DRY WEATHER CONDITIONS OVER THE MID SOUTH TODAY AND TONIGHT. SOUTHERLY LOW LEVEL FLOW AROUND THE WESTERN PERIPHERY OF THE HIGH WILL ALLOW FOR SLIGHTLY WARMER TEMPERATURES THIS AFTERNOON. MOISTURE WILL SLOWLY INCREASE AHEAD OF THIS SYSTEM AHEAD OF AN EASTWARD MOVING COLD FRONT. WARMER CONDITIONS CAN ALSO BE EXPECTED BY MONDAY AHEAD OF THE COLD FRONT.
TEMPS ARE STILL FREEZING. /ISSUED 357 AM EST SUN JAN 24 2016/ MODELS ALL IN GOOD AGREEMENT WITH A SHORT WAVE RIDGE BUILDING OVER THE CWA TODAY. THIS WILL SHIFT TO OUR EAST AS THE NEXT TROUGH STARTS DIGGING INTO THE SOUTHERN PLAINS.
EXPECT ANY PRECIPITATION WITH THE APPROACHING DISTURBANCE TO START OFF AS LIGHT FREEZING DRIZZLE DURING THE LATE EVENING OR OVERNIGHT HOURS. THE UPPER LEVEL LOW ACROSS THE AREA MONDAY MORNING WILL MOVE TO THE EAST ON MONDAY. RESULTING IN THE POSSIBILITY OF SOME FREEZING DRIZZLE. WENT WITH SOMETHING BETWEEN THE TWO AND HAVE SOME FREEZING DRIZZLE AND SNOW FOR THE SOUTHEAST FOR A FEW HOURS IN THE MORNING. THE FREEZING DRIZZLE SHOULD GIVE WAY TO SNOW DURING THE MORNING. AS THE UPPER LOW MOVES TO THE EAST DURING THE AFTERNOON THE SNOW MOVES OUT AS WELL.
THE FORECAST HAS BEEN CORRECTED FOR A CHANCE OF FREEZING DRIZZLE TONIGHT. HIGH CLOUDS SHOULD CONTINUE ACROSS THE FCST AREA TODAY AND A WEAK COLD FRONT SHOULD DROP THROUGH THE FCST AREA THIS AFTN. THE RAP WAS THE WARMEST MODEL WITH 50S SOUTH BUT THE COLD FRONT AND HIGH CLOUDS SHOULD KEEP HIGHS IN THE 40S. ALSO WILL SEE TEMPS AROUND THE FREEZING MARK FOR THE AFTERNOON WHERE STRONGEST WINDS ARE LOCATED.
NORTH/SOUTH ORIENTED HIGH PRESSURE RIDGE WILL THEN MOVE TO ALONG THE EASTERN SEABOARD TONIGHT.
SNOW SHOWERS ARE STILL ONGOING OVER THE MOUNTAINS, BUT THE LOWER ELEVATIONS ARE GENERALLY PRECIPITATION FREE. THIS BREAK IN PRECIPITATION WILL BE SHORT-LIVED, BECAUSE A WARM FRONT IS MOVING TOWARD THE COAST RIGHT NOW WHICH WILL BRING MORE VALLEY RAIN AND MOUNTAIN SNOW TO THE AREA TODAY AND TONIGHT. SNOW LEVELS WILL RISE WITH THE INCOMING WARM FRONT, BUT MOST OF THIS WILL FALL AS SNOW ABOVE ABOUT 4000 FEET.
OTHERWISE QUIET WEATHER WITH HIGHS IN THE LOWER 30S.