Aikyam-Lab/Synoptic-Bench huggingface dataset:
119 AM CDT WED APR 20 2016 VEIL OF STRATUS CLOUDS AND SCATTERED RAIN SHOWERS CONTINUE TO PLAGUE MUCH OF CENTRAL MN AND WEST CENTRAL WI THIS AFTERNOON NORTH OF A WEAK WARM FRONT/TROUGH. THE UPPER LOW LIFTS/MOVES EAST WEDNESDAY NIGHT AND SHOULD DRAG THE BULK OF THE RAIN THREAT WITH IT DURING THIS PERIOD. THEN A COLD FRONT DROPS SOUTHEAST THURSDAY OVER THE AREA.
240 AM MST WED APR 20 2016 STRENGTHENING HIGH PRESSURE WILL BRING CLEAR SKIES AND A WARMING TREND TO THE REGION THROUGH THURSDAY. A SERIES OF PACIFIC LOW PRESSURE SYSTEMS WILL BRING COOLER TEMPERATURES.
325 AM EDT WED APR 20 2016 HIGH PRESSURE WILL KEEP THE AREA DRY FOR ONE MORE DAY. LOW PRESSURE WILL TRACK FROM THE MIDWEST ACROSS THE CENTRAL LAKES AND TO ONTARIO CANADA.
323 AM EDT WED APR 20 2016 A CLOSED UPPER LOW OVER WESTERN NE WILL BEGIN TO OPEN UP AND MOVE OVER IA AS AN UPPER TROUGH MOVES TO JUST NW OF THE CWA BY 12Z THU. AS THE UPPER TROUGH APPROACHES AND THE UPPER LOW MOVES CLOSER. LOWS TONIGHT WILL BE IN THE LOW TO MID 40S. A TRANSITION TO A COOLER REGIME WILL OCCUR THIS WEEK. A MID-LEVEL LOW OVER THE EASTERN ROCKIES THIS AFTERNOON WILL BE PICKED UP BY A TROUGH TRACKING SE ACROSS SOUTHERN CANADA ON THURSDAY. AS THE LOW DRIFTS EASTWARD AHEAD OF THE TROUGH WEDNESDAY NIGHT. THE APPROACHING TROUGH WILL THEN REINFORCE THE SHOWER ACTIVITY ACROSS THE CENTRAL AND EAST THU MORNING. AN ASSOCIATED COLD FRONT WILL CROSS THE CWA FROM NW TO SE ON THU.
107 AM EDT WED APR 20 2016 HIGH PRESSURE WILL PREVAIL OVER THE REGION INTO EARLY WEDNESDAY. A WEAK BACKDOOR COLD FRONT WILL DESCEND INTO SOUTHEAST SOUTH CAROLINA WEDNESDAY BEFORE DISSIPATING.
Chance of Showers Continues into Thursday then a Warmer Weekend. The upper level low that has been anchored out west the past few days will begin an eastward track the next couple of days as it opens up. The potential for a few showers will continue tonight and Thursday as the primary upper level trough axis makes its way across the region.
249 AM PDT WED APR 20 2016 High pressure will keep temperatures well above average through Thursday with westerly afternoon breezes.
428 AM EDT WED APR 20 2016 HIGH PRESSURE WILL BUILD INTO THE AREA FROM THE NORTH THROUGH TONIGHT, THEN GRADUALLY MOVE OFFSHORE THURSDAY.
514 AM EDT WED APR 20 2016 A CLOSED UPPER LOW OVER WESTERN NE WILL BEGIN TO OPEN UP AND MOVE OVER IA AS AN UPPER TROUGH MOVES TO JUST NW OF THE CWA BY 12Z THU. AS THE UPPER TROUGH APPROACHES AND THE UPPER LOW MOVES CLOSER. LOWS TONIGHT WILL BE IN THE LOW TO MID 40S. STRONG UPSLOPE NE FLOW WITH LINGERING LOW LEVEL MOISTURE WILL ALSO FAVOR SOME DZ/FZDZ N CNTRL OVER THE HIGHER TERRAIN. THE NRLY WINDS WILL KEEP MAX TEMPS IN THE LOWER 40S NEAR LAKE SUPERIOR WITH MAX READINGS TO AROUND 50 INLAND. GIVEN THE GREENLAND BLOCKING HIGH. SFC AND MID LEVEL RIDGING WILL BEGIN TO DOMINATE WITH DRY WEATHER MORE LIKELY. EXPECT HIGH PRESSURE TO BRINGS LIGHT WINDS THROUGH TONIGHT. A TROUGH WILL TRACK SOUTHEASTWARD ACROSS LAKE SUPERIOR ON THURSDAY.
OLD PESKY UPPER LOW WILL CONTINUE TO SLOWLY SHEAR ACROSS THE CENTRAL PLAINS THROUGH THE NEXT COUPLE DAYS. FOR LATER WEDNESDAY ANOTHER BAND OF RAIN SETS UP MAINLY JUST SOUTH OF THE CWA AS A WAVE ROTATES AROUND THAT DEPARTING UPPER LOW. LATE WEDNESDAY NIGHT INTO THURSDAY CONDITIONS SHOULD DRY OUT AS UPPER RIDGING BUILDS OVER THE FORECAST AREA.
UPPER LOW SPINNING OVER NORTHEAST CO WILL BEGIN TO PUSH OUT INTO THE PLAINS. IN THE LOWER TO MID 50S. THE HEAVIEST RAINS OF OVER AN INCH SHOULD OCCUR IN OUR FAR WESTERN CWA CLOSER TO THE CYCLONE. MAXIMUM TEMPERATURES WILL BE IN THE LOWER TO MID 60S AT MOST LOCATIONS. DEFORMATION ZONE OVER THE NW AND NORTHERN CWA WEDNESDAY EVENING WILL GRADUALLY WEAKEN AS THE UPPER LOW CONTINUES TO FILL.
MORE CLDS AND A S FLOW WL KEEP THE WRN CWA WARMER. UPPER AIR PATTERN CONSISTS OF A CLOSED 500 MB LOW OVER NE CO WITH A RIDGE ON THE WEST COAST AND ANOTHER OVER THE SERN U. A TRANSITION TO A COOLER REGIME WILL OCCUR THIS WEEK. A MID-LEVEL LOW OVER THE EASTERN ROCKIES THIS AFTERNOON WILL BE PICKED UP BY A TROUGH TRACKING SE ACROSS SOUTHERN CANADA ON THURSDAY. AS THE LOW DRIFTS EASTWARD AHEAD OF THE TROUGH WEDNESDAY NIGHT. THE APPROACHING TROUGH WILL THEN REINFORCE THE SHOWER ACTIVITY ACROSS THE CENTRAL AND EAST THU MORNING. AN ASSOCIATED COLD FRONT WILL CROSS THE CWA FROM NW TO SE ON THU.
327 AM CDT WED APR 20 2016 THE DECENT RAIN PRODUCING UPPER LOW WILL COME UP PRETTY MUCH AS EARLIER EXPECTED TODAY. THIS IS EXPECTED TO HOLD INTO THE EARLY MORNING DESPITE INCREASING HIGHER CLOUDS AHEAD OF THE SYSTEM WITH THE LOWER LEVELS MORE OR LESS LOCKED IN. TEMPERATURES WILL REACH THE LOWER TO MIDDLE 60S NORTH OF INTERSTATE 90 TODAY BUT STAY IN THE 50S IN MUCH OF NORTHWEST IOWA WITH THE DEVELOPING RAIN. THE APPROACHING NORTHWESTERLY UPPER FLOW AND ASSOCIATED RIDGING WILL BRING CLEARING NORTH AND WEST OF FSD. THURSDAY WILL SEE LOW PRESSURE ALOFT SHIFTING SOUTHEAST OF THE AREA.
200 AM EDT WED APR 20 2016 HIGH PRESSURE WILL CONTINUE TO BUILD OUT OF CANADA INTO THE NORTHEASTERN US.
HIGH PRESSURE ALONG THE EASTERN U. SEABOARD WILL MOVE EAST OUT INTO THE ATLANTIC OCEAN THURSDAY WITH THE LOW LEVEL EASTERLY FLOW BECOMING MORE SOUTHEASTERLY ON THURSDAY.
120 AM EDT WED APR 20 2016 DRY CONDITIONS WILL PREVAIL TONIGHT INTO WEDNESDAY WITH LOWS TONIGHT RANGING BETWEEN THE LOW 40S AND LOW 50S.
/ISSUED 424 PM EDT TUE APR 19 2016/ HIGH PRESSURE REMAINS ANCHORED ACROSS THE SOUTHEAST AND THE FLORIDA PENINSULA WITH PARTLY CLOUDY SKIES OBSERVED ACROSS THE REGION. HIGH PRESSURE IS FORECAST TO REMAIN ACROSS THE SOUTHEAST AND THE FLORIDA PENINSULA THROUGH WEDNESDAY ALTHOUGH A SLOW EASTWARD DRIFT IS FORECAST. THE HIGH WILL CONTINUE TO SHIFT EASTWARD INTO THE ATLANTIC WASTERS OFF THE SOUTHEAST COAST ON THURSDAY AS AS COLD FRONT ENTERS THE EASTERN CONUS.
WEAK BOUNDARY SITUATED NEAR OUR NORTHERN AREAS AND UPPER LEVEL RIDGING CONTINUES TODAY. SOME MID/UPPER LEVEL CLOUDS EXPECTED OVER US AHEAD OF AN APPROACHING COLD FRONT. SOME PLACES COULD SEE A DECENT BREAK IN THE CLOUDS TODAY, ALLOWING TEMPERATURES TO GET WARMER THAN WE SAY YESTERDAY. IN ADDITION, SOME OF THE HIGH RESOLUTION MODELS ARE STILL TRYING TO DEPICT A BIT OF LIGHT PRECIPITATION WITH THE BOUNDARY SITUATED OVER OUR NORTHERN AREA.
Looks like a brute force type of event over the higher Front Range mountains down to the higher peaks in Summit County where gusts up to 85 mph or more possible. Fortunately, there is not a significant mountain top stable layer so the strongest winds should be confined to the higher elevations.
The afternoon analysis shows a weak upper level trough west of the area with southwesterly flow aloft and easterly flow at the surface.
1253 PM CDT Sat Oct 15 2016 A weak cold front will make it's way across western and north central Nebraska this morning.
535 PM EDT Sat Oct 15 2016 High pressure will maintain dry weather tonight before a weak disturbance returns shower chances for later Sunday and Sunday night. Much warmer temperatures are expected to start the week. This will thin out coverage and allow for another relatively strong radiational cooling night, but not quite as strong as previous nights with a little more moisture in the air and slightly more turbulence in the lower levels.
By mid-week another trough will approach the central U. GFS and ECMWF differ somewhat on the timing of the trough with the ECMWF being the most progressive.
High pressure will still maintain dry conditions through this evening with seasonably warm temperatures.
Sunday's weather will be very tranquil with surface ridging briefly nosing across the area. high temperatures will be unseasonably mild in the low to mid 60s.
A light east to southeast surface flow pattern is prevalent across the region with surface dewpoints mostly in the lower to mid 60s F over the interior and near 70 closer to the immediate coast.
258 PM CDT Sat Oct 15 2016 Weak high pressure overhead will shift east tonight with an increased pressure gradient developing across the state. Expect a brief period of stronger Coteau downslope winds with the shift to south-westerlies as the low moves over eastern North Dakota Sunday night, but this would last an hour or two before winds continue to round to the northwest.
The upper trough over Middle Tennessee and western Alabama will translate southeast and weaken.
An incoming trough has picked up some moisture from a subtropical connection and will spread that moisture into central and eastern Idaho. With all the cloud cover and mild air, temperatures in the Snake River plain will stay above freezing with only about 15 to 20 degree spread between the low and the high, with temperatures only reaching the mid-50s even in the low elevations. Since the main trough is the second feature, it leaves behind only high pressure, which should help slacken the precipitation Tue afternoon.
300 PM CDT SAT OCT 15 2016 Early afternoon IR imagery together with RAP13 and surface obs showed a cold front across the region, which was most noticeable by the wind direction and dewpoint. The low 60 dewpoints ahead of the boundary together together with surface temps near 70s was able to produce a few hundred J/kg of MUCAPE across southeast MN. On Sunday high pressure will move across the region with southerly return flow developing from west to east across the region. This will lift today's boundary back to the north as a warm front which will set the stage for some showers and thunderstorms, but those should hold off until after 00Z so continued with a dry forecast through Sunday evening.
The short term forecast will feature dry weather with an upper level ridge building to our SW and another weather system passing well to our north. The building ridge will start the well advertised significant warm-up over the Ohio Valley. With temps already overachieving across the region today, went ahead and bumped up highs for Sun into the lower 80s area wide.
247 PM CDT SAT OCT 15 2016 Widespread stratus was slow to erode again today but given low level warm air advection, temperatures quickly rose into the low 80s with only a few breaks in the clouds.
Dry and warmer conditions still expected today courtesy of an upper level high pressure system across Texas expanding to across the area.
Surface map has deep low pressure over western Ontario with a cold front trailing south-southwestward through central MN. Very moist southerly flow in advance of this cold front was producing widespread stratus and areas of drizzle across the forecast area. Look for the cold front to slip southeast through the area this evening. Otherwise, expecting scattered showers/few storms ahead of the cold front this evening as it comes through with overnight lows ranging from the upper 40s across northern WI to the lower 60s across far northeast IA/southwest WI. Shower and thunderstorms become likely Sunday night as another wave of low pressure moving across the Northern Plains pulls a warm front into the area.
Further east, the Idaho Panhandle and far northeast Washington will experience a period of moderate rain this evening along and ahead of a cold frontal passage.
As the high weakens into Sunday the onshore flow will decrease with less moisture moving inland. In addition, as the the upper trough passes to the Southeast Sunday afternoon, there will be less instability available.
The high/mid level clouds that impacted the CWA this morning have moved east, and majority of the CWA is under mostly clear skies. Surface temps will be about 10 degrees cooler in northeastern Wyoming Sunday afternoon than western/central South Dakota, so relative humidity will be slightly higher out there to avoid red flag conditions.
Aside from patchy morning fog, VFR conditions should prevail next 24 hours as sfc flow continues veering to the south under upper- lvl ridging. Upper ridging will be over the region today with south to southwest winds.
downslope conditions will bring about highs ranging mainly in the lower 90s.
341 PM EDT Sat Oct 15 2016 A cold front will approach from the west and north and become nearly stationary from Wisconsin across southern lower Michigan to Lake Ontario by Sunday night.
Broad upper level ridge across the Desert Southwest and stretching into Texas will continue to amplify the next few days. Easily shattered the high temperature records at Amarillo (88) and Dalhart(87) today, with temperatures in the low to mid 90s this afternoon.
A mid-level ridge axis will be will positioned over TX to maintain above normal temperatures this weekend. Surface to 5000 ft winds should be mostly unidirectional out of the SSE later this morning, so a mix-out of the low cigs should be progressive between 14z and 16z.
We are still in a southerly flow regime and with the upper level low still hovering overhead, we could see some additional development of clouds and a sprinkle or two for those near the Alabama state line tonight. As Sunday rolls around and the upper level low pulls off to the east, we then turn our attention westward to the upper level ridge that develops. This ridge has been well depicted in all of our models and is expected to expand into the southeast U.
Southerly flow ahead of an approaching cold front brought upper 50s and lower 60s dew points to much of the area today. This resulted in overcast conditions that kept temperatures from getting any warmer than the lower to middle 60s and also brought areas of light drizzle and fog to north central Wisconsin for much of the day. A frontal boundary from this weekends system, which shifted south of the area, will lift back northward Sunday night as a warm front for a return of showers and storms across the area.
415 PM MDT Sat Oct 15 2016 Water vapor imagery shows the strong upper low slamming into the PacNW today.
As for KTRI, moisture advection will occur overnight ahead of the weak upper low.
603 PM EDT Sat Oct 15 2016 High pressure will remain over the region into Sunday with dry conditions and slowly moderating temperatures. A cold front will drop through the region Sunday night bringing the chance for showers.
Lows tonight will only fall back into the lower 60s and highs on Sunday will be in the 70s.
timing of cold front. Strong southerly flow remains across the cwa ahead of the cold front in the eastern Dakotas this morning. Some patchy drizzle remains possible during the morning in the lower cloud region. The front won't go too far Saturday night and will return Sunday as southeast winds encompass the region ahead of another low pressure system. The low levels will be dry and should respond well to the WAA. Raised lows several degrees across the eastern two thirds of the area, where the highest dew points will reside. We may even see some lows warmer and close to 70 in rain-free areas if these dew points actually materialize.
655 PM EDT Sat Oct 15 2016 Weak upper level trough will continue to weaken and drift south of the area tonight.
Cooler than forecast temps over the Park has led to increased drainage winds around Livingston with winds briefly touch 40 mph this afternoon. Models indicate enough capping above the ridgetop to force some of the 700 mb winds down through the gap especially during the early morning hours when drainage is going to be optimal.
230 PM EDT Sat Oct 15 2016 High pressure will keep weather conditions quiet through Sunday morning. As the high exits to our southeast, a front will sweep through late Sunday into Sunday night with scattered rain showers.
A cold front has moved to the southeast of the forecast area today. Behind the front there is warm advection and increasing moisture in the lower levels. The low clouds and fog will linger much of the morning before moving out similar to this morning. The lingering clouds will keep the temperatures a little cooler in the northeast than in the remainder of the area.
Sunny and warm will be the prevailing conditions over the next few days as an upper ridge of high pressure currently centered over northern Mexico begins to build into the Mid-South. Meanwhile, a surface center of high pressure will move just off the Atlantic coast, which will allow southerly flow to prevail at the surface.
327 PM CDT SAT OCT 15 2016 (Tonight and Sunday) Latest satellite and analysis shows weak ridging aloft over central and east Texas, with a strong upper low moving into northern California. Strong southwest flow aloft is developing over west Texas as the upper low moves inland over the west coast. lee trough has strengthened over far west Texas, bringing stronger surface winds and breezy conditions to west central Texas today. Unseasonably Warm and sunny weather expected again tomorrow with highs climbing into the lower 90s.
Feature moved across the immediate area overnight and now being followed by modest ridging building into to the south plains and lower Mississippi valley. Dry weather pattern expected to continue with this high pressure remaining in control. Global models depicting a strong frontal passage later in the week and MOS now depicting similarly cooler temperatures with the frontal passage.
143 PM EDT Sat Oct 15 2016 High pressure will keep weather conditions quiet through Sunday morning. As the high exits to our southeast, a front will sweep through late Sunday into Sunday night with scattered rain showers.
326 PM CDT Sat Oct 15 2016 Summer-like weather was beginning its return to the Ozarks this afternoon as an upper level ridge was building into the region. Otherwise, a mild and breezy night is on tap with low temperatures ranging from the lower 60s across the far eastern Ozarks to the upper 60s along the I-49 corridor. Temperatures will be even warmer as 850 mb temperatures warm into the 16-20 Celsius range. High temperatures will therefore range from the lower 80s across the eastern Ozarks to the middle and even upper 80s along the I-49 corridor.
Weak cold front currently across the mid-Missouri Valley will try and slide southeast toward the bi-state region. Upper ridge builds into the area with record temps expected on Mon. Have kept gusts in the lower 30 kts range, but will need to continue to watch. Disagreement continues regarding the approaching of the main trof by mid week.
Looking ahead the next best rain chances will be starting late Tues as the upper ridge begins to weaken/move off to the E.
231 PM EDT Sat Oct 15 2016 High pressure will maintain dry weather today before a weak disturbance returns shower chances for later Sunday and Sunday night. Much warmer temperatures are expected to start the week. This will thin out coverage and allow for another relatively strong radiational cooling night, but not quite as strong as previous nights with a little more moisture in the air and slightly more turbulence in the lower levels.
308 PM EDT Sat Oct 15 2016 Quiet weather expected tonight with high pressure in place.
The base of the trough near Central California will be sending a significant amount of moisture into the Cascade Range, Inter-Mountain West and the Northern Rockies tonight. So tonight and Sunday the base of the trough swings northeast into Montana to energize winds and bring rain showers to the local area.
315 PM EDT Sat Oct 15 2016 With high pressure centered east of the area, southerly winds will bring warmer air into the region over the next few days.
Gusty winds, accompanied by persistent low stratus, have been in place for most the afternoon with this cloud shield slowly drifting east moving with the low pressure. Sunday looks to be much warmer than today, and much warmer than normal seasonal temperatures.
243 PM EDT Sat Oct 15 2016 Weak upper level trough will continue moving northwest of the area today spreading clouds across the area.
Mid-level ridge building eastward into Texas will allow for subsidence and continued drying aloft with VFR conditions over the next 24 hours. Expect VFR conditions to prevail across the Rio Grande valley and northern ranchlands today as the 500mb ridge across northern Mexico and southwest Texas provides subsidence across the area. /issued 434 AM CDT Sat Oct 15 2016/ SHORT TERM (Today through Sunday): 500mb ridge across northern Mexico and the western half of the state will provide subsidence across the CWA today. Subsidence will increase across the area tonight into Sunday as the upper level ridge of high pressure moves eastward across Texas tonight. Will lean towards persistence for temperatures today and Sunday as observed highs the past two days have been slightly warmer than MOS temp guidance.
Upper level ridge will build over the area today, resulting in very warm and mostly dry conditions. Concur with the GFS deterministic which builds the upper ridge over the CWA/MSA during the period.
339 PM CDT Sat Oct 15 2016 Potent low pressure system across the Pacific NW today with quasi- zonal to slight SW flow across the high plains. Unseasonably warm conditions continue as the low lifts into Canada with southwest flow continuing across the region.
Mid level trough extending from Manitoba into the Central Plains had pushed a weak cold front into northeast Nebraska this morning, where dew points had dropped into the 40s. Front is expected to drift only a little farther southeast into this evening before working back north or washing out as weak southerly low level flow is induced by lowering pressures in the Northern High Plains ahead of approaching mid level trough. That trough is forecast to spin off one piece of energy across the Northern Plains Sunday which pushes a weak front into our area Sunday night.
A 1032 MB high pressure system centered just east of New England stretches southwest down the Eastern Seaboard into the southeastern United States. Skies are mostly sunny, aside from the Lower Keys where a meager cloud line has developed. An upper level trough nearing the Florida panhandle (see water vapor imagery), will stall and encapsulate near the Florida peninsula Sunday and Sunday night. A favorable region for cyclogenesis (DCVA, low level moisture convergence, venting aloft) will develop southeast of the trough, somewhere across Cuba or the southwestern Bahamas.
Strong warming aloft, but with expected clouds, models trending a bit cooler despite what should be decent boundary layer mixing. Maximized near 700mb, it is basically lifting northeastward along the southeast extension of low pressure in southwest Canada.
though instability will likely punch a few holes in the lower deck and allow some rise in ceilings as the showers and isolated thunder move through the region overnight. Little wind at the surface and sufficient left over boundary layer moisture along with warmer temperatures aloft with dry layer firmly in place above the low stratus layer all suggest good potential for fog and patchy drizzle again by 12z. but generally went near guidance with lower to mid 60s south of the boundary and cooler 40s to lower 50s north of the boundary.
223 PM EDT Sat Oct 15 2016 High pressure will remain over the region into Sunday with dry conditions and slowly moderating temperatures. A cold front will drop through the region Sunday night bringing the chance for showers.
227 PM CDT Sat Oct 15 2016 Surface map has deep low pressure over western Ontario with a cold front trailing south-southwestward through central MN. Very moist southerly flow in advance of this cold front was producing widespread stratus and areas of drizzle across the forecast area. Look for the cold front to slip southeast through the area this evening. Otherwise, expecting scattered showers/few storms ahead of the cold front this evening as it comes through with overnight lows ranging from the upper 40s across northern WI to the lower 60s across far northeast IA/southwest WI. Shower and thunderstorms become likely Sunday night as another wave of low pressure moving across the Northern Plains pulls a warm front into the area.