Aikyam-Lab/Synoptic-Bench huggingface dataset:
407 AM EDT TUE MAY 3 2016 LOW PRESSURE WILL MOVE EAST INTO THE CANADIAN MARITIMES TODAY. HIGH PRESSURE WILL THEN BUILD ACROSS NORTHERN MAINE THROUGH MID WEEK. AN UPPER TROUGH OVER THE GREAT LAKES WILL SLOWLY PROGRESS EASTWARD DURING THE MIDDLE OF THE WEEK. WEDNESDAY WILL BE DRY AND SEASONABLE IN SOUTHWEST FLOW AHEAD OF THE UPPER TROUGH.
WATER VAPOUR HAD UPPER RIDGE OVER THE ROCKIES INTO SOUTHWEST CANADA. UPPER RIDGE PUSHES EAST WITH WARM AIR ADVECTION OVER THE CWA. UPPER RIDGE DOMINATES WITH TEMPERATURES 5-10F ABOVE NORMAL.
ALLOWING FOR HIGH PRESSURE TO BUILD OVER THE AREA. BUILDING H5 RIDGE WILL SET UP NW DOWNSLOPE FLOW OVER THE AREA THRU THE DAY ALLOWING FOR DAYTIME HIGHS TO REACH THE 65-70F RANGE. MUCH WARMER WEATHER CAN BE ANTICIPATED THROUGH AT LEAST THE WEEKEND. THIS IS DUE TO A A HIGHLY AMPLIFIED HIGH PRESSURE RIDGE THAT DEVELOPS OVER THE CENTRAL PLAINS BY MID-WEEK.
533 AM CDT TUE MAY 3 2016 CURRENT SATELLITE DATA INDICATES THAT A POSITIVELY SHEARED MID-LEVEL LONGWAVE TROUGH REMAINS IN PLACE ACROSS MUCH OF THE EASTERN CONUS THIS MORNING -- EXTENDING FROM ONTARIO/QUEBEC SOUTHWESTWARD INTO THE SOUTHERN ROCKIES. WITH A FAIR AMOUNT OF STRATUS/ALTOSTRATUS CLOUDS NOTED -- EVEN IN THE WAKE OF A COLD FRONT NOW EXITING THE SOUTHEASTERN COUNTIES. ALTHOUGH THE THREAT FOR RESIDUAL SHOWER ACTIVITY ASSOCIATED WITH THE COLD FRONT SHOULD END BEFORE 12Z. A MID-TROPOSPHERIC RIDGE POSITIONED ACROSS THE ROCKIES IS FORECAST TO AMPLIFY FURTHER DOWNSTREAM FROM ANOTHER LONGWAVE TROUGH APPROACHING THE PACIFIC COAST. THIS WILL LEAD TO AMPLIFICATION OF TROUGH ACROSS THE EASTERN CONUS.
404 AM EDT TUE MAY 3 2016 SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGH EARLY WEDNESDAY AHEAD OF AN APPROACHING COLD FRONT. A COLD UPPER LOW WILL DIP ACROSS THE CAROLINAS LATE IN THE WEEK.
PREPARING TO RECEIVE HIGH AMPLITUDE UPPER TROUGH AS UPPER RIDGING PUSHES N OVER THE ROCKIES. EXPECT STORMS TO FAVOR INLAND SECTIONS AND THE LOWER TREASURE COAST FIRST. THE STRONG FRONT ADVANCES THRU N PNSLA TONIGHT KEEPING ASSOCIATED STORMS IN THE FORECAST AIDED BY THE PLUNGING UPPER S/W AND TROUGH WITH INCREASED MID/UPPER LVL WIND FLOW. DEVELOPING LOW PRESSURE ALONG THE MID ATLC SEABOARD WILL PUSH A LATE SEASON COLD FRONT ACROSS THE FL PENINSULA. REMAINING BREEZY AND TURNING COOLER WED EVENING WITH NOTICEABLY COOLER TEMPS FALLING INTO THE 50S TO L60S BY EARLY THU.
131 AM EDT TUE MAY 3 2016 OUR AREA WILL REMAIN UNDER A PERSISTENT UPPER LEVEL LOW PRESSURE SYSTEM THIS WEEK.
318 AM CDT TUE MAY 3 2016 HIGH PRESSURE SETTLING OVER THE REGION WITH CLEARING SKIES AND LIGHT NORTHWEST WINDS. TEMPERATURES FALLING INTO THE LOWER 40S AT 2 AM CDT.
THE BASE OF AN UPPER TROUGH SHOULD PUSH THROUGH THE AREA TOMORROW.
257 AM CDT TUE MAY 3 2016 Early this morning a short wave upper level trough was digging southward across western NE into western KS. This short wave trough will dig south-southeast across western OK into northeast TX Tonight. The stronger ascent with this upper trough will remain well west and southwest of the CWA. As the upper trough digs into western OK, skies should begin to clear during the late morning and afternoon hours. AS the Great Lakes upper trough amplifies the flow aloft over eastern KS will become northwesterly. A weak cold front will switch winds to the northwest late tonight. On Wednesday a mid/upper trough over the Great Lakes will continue to amplify and dig over the southeast US.
626 AM EDT TUE MAY 3 2016 UPPER LEVEL TROUGH CROSSES TODAY.
AN UPPER-LEVEL HIGH PRESSURE RIDGE CONTINUES TO BUILD OVER OUR CWA. THIS RIDGE WILL CREST OVER THE AREA TUESDAY. THEN ITS AXIS WILL SHIFT JUST EAST OF THE CWA BY EARLY EVENING ON WEDNESDAY, AS AN UPPER TROUGH OF LOW PRESSURE NEARS BRITISH COLUMBIA AND THE U. ON WEDNESDAY, MORNING LOWS MAINLY IN THE 40S AND AFTERNOON HIGHS IN THE LOW TO MID 80S ARE EXPECTED FOR MOST LOCALES.
HIGH PRESSURE WILL BRING DRY CONDITIONS THROUGH WEDNESDAY MORNING WITH TEMPERATURES APPROACHING 80 DEGREES IN MANY PLACES BY MIDWEEK. LOW PRESSURE WILL ENSURE ABUNDANT SHOWERS OCCUR THIS WEEKEND.
/Issued 1029 AM CDT Mon Oct 24 2016/ Updating forecast to add a slight chance for elevated showers Today over most of the CWA owing to the weak upper trough moving across the Region and mid/upper level moisture (also NQI recently reported -RA). As the trough moves farther to our our northeast northwest flow aloft kicks in, albeit brief, and helps to steepen the lapse rates with weak cold pool interaction, so more cloud cover is expected today. Continued onshore flow will help to increase the low-level moisture for tonight and when combined with the increase cloud cover, not allowing for deeper mixing, moisture will be able to pool nicely tonight.
Everywhere has warmed up quiet a bit today with locations in the Southern Tennessee Valley flirting with around 80 degrees for the high (approximately 10 degrees above normal for this time of year).
208 PM MDT Mon Oct 24 2016 Broad upper ridge covers most of the CONUS, with a strong low pressure system off the Pac NW coast. Highs Tuesday will be generally in the 60s, a little warmer across southwestern SD and a little cooler across northwestern SD.
131 PM EDT Mon Oct 24 2016 Cooler temperatures today with a few sprinkles or a shower, especially north and east of Pittsburgh.
/issued 904 AM EDT Mon Oct 24 2016/ High pressure will remain over the Southeastern United States today keeping an northeast wind flow over South Florida along with dry weather.
214 PM MDT Mon Oct 24 2016 Early morning WV imagery and RAP analysis shows large scale ridging continuing to dominate the pattern across the central US. At the surface as front is stalled along the front range, with high pressure centered over the northern Mississippi River Valley extending south and west towards our CWA.
215 PM MDT Mon Oct 24 2016 High clouds streaming across the CWA in southwesterly upper flow ahead of a large upper trof off the west coast. Any snow will be confined to the highest mtn tops with lack of any real cold air.
401 PM EDT Mon Oct 24 2016 High pressure mid week.
445 PM EDT Mon Oct 24 2016 19z sfc analysis shows a dry and mostly cloud free cold front settling through eastern parts of the state. The models are in good agreement aloft through the short term as they all depict a broad trough lifting northeast and out of the area.
310 PM EDT Mon Oct 24 2016 Low pressure meandering over the maritimes will provide a brisk westerly flow over the region through Tuesday, with some upslope snow accumulations expected in the mountains.
143 PM EDT Mon Oct 24 2016 High pressure mid week. It will be a chilly night tonight and with high pressure trying to nose in from the northwest, frost possibilities arise. High pressure builds overhead Monday night, when mostly clear skies and cold temperatures will allow for frost possible across the forecast area. It is possible we could even see some freezing fog in some of the sheltered mountain valleys.
457 PM EDT Mon Oct 24 2016 High pressure over the region through midweek.
Regardless, with ridge axis weakening and shifting closer to the area, temperatures for all areas overnight will be a few degrees warmer than last night.
/issued 207 PM CDT Mon Oct 24 2016/ Mid level ridging is evident in UA charts today per anticyclonic curvature and light winds in the 7h-5h layer. Persistent southerly low level flow will result in increased mstr overnight and favors the development of clouds/patchy light fog Tue AM along with warmer overnight lows across the Lower Trans Pecos/parts of the PB. Mid level ridging will briefly breakdown Tue as a shrtwv trof passes. Lower heights/better mstr/slightly cooler 85h temps are supportive of high temps a few degrees cooler Tue PM. A weak cold front will arrive too late to cool temps on Wed and high temps will be well above normal again, especially with typical tendency for pre-frontal warming. Prominent mid level ridging again Thur will maintain dry and warm pattern.
Most area temperatures at 10 AM have warmed into the lower to mid 70s inland and in the upper 70s to around 80 near and along the coast. Today's high temperature forecast in the low to mid 80s (several degrees above normal) looks right on track.
125 PM EDT Mon Oct 24 2016 A frontal boundary tracking southward across the Ohio Valley will bring cooler conditions to the region today.
A deep upper level closed low off the coast will slowly push a weakening cold front into the forecast area late today and overnight.
1234 PM CDT MON OCT 24 2016 High pressure dominates the weather across central Illinois this morning. with readings topping out in the lower to middle 60s. Quiet and much cooler weather conditions expected across central and southeast Illinois through the period.
As a result of a weak and transient upper level disturbance, winds will remain variable across the southern half of the state and some isolated cumulus may form in addition to the high clouds.
1104 AM MDT Mon Oct 24 2016 As mentioned in previous discussions, the ridge which brought warm, dry weather to the area over the past several days has shifted to the east. The change in pattern was driven by a trough off the West Coast which continued to track toward land during the night. Increased clouds will result in slightly cooler temperatures as southwest flow aloft continues to bring mild air to the region. Though afternoon highs will be a bit cooler than those forecast for today, readings are still expected to peak around 5 degrees above seasonal norms. Overnight the next big ridge begins to build west of the forecast area.
353 PM CDT Mon Oct 24 2016 Quiet weather is expected overnight as surface ridging continues to depart. Convection will develop as forcing increases by late afternoon in the west ahead of the low and also in the north near the baroclinic zone.
334 PM CDT Mon Oct 24 2016 Mid afternoon temperatures across Southeast Texas under partly cloudy skies range from the lower to mid 80s inland to around 80 at the coast. Still looking for mainly partly cloudy skies over the next several days with low temperatures ranging from the upper 50s to lower 60s well inland to the lower 70s at the coast and high temperatures in the lower to mid 80s. Mid/upper level ridging then builds across the state from the west and southwest toward the middle to end of the week and on into the weekend. This feature will keep a majority of Southeast Texas on the dry side with steadily warming and unseasonably warm temperatures (lows in the lower to mid 60s and highs in the mid to upper 80s.
239 PM CDT Mon Oct 24 2016 Latest water vapor imagery in addition to 12z upper air analysis shows a weak ridge axis moving across the High Plains this afternoon. A warm front is forecast to extend southeast into western Missouri with near 60 degree dewpoints in the warm sector. Upper ridging will build east toward the area by late in the work week with temperatures returning to above normal.
247 PM EDT MON OCT 24 2016 Lake enhanced diurnal cu field is beginning to erode over southwest Lower Michigan in response to building high pressure. Although NW to NNW flow will persist through tonight, 1032mb high pressure becoming centered over southern Lower combined with the loss of a diurnal heating component will limit overnight clouds to nothing more than a few stray filaments supported by Superior-Michigan. Diminishing wind, particularly over the SW half of the CWA will allow for favorable diurnal cooling into the low 30s. Further east and north, increased cloud potential and a stronger gradient further from the center of the high may keep temps slightly elevated, but still in the 30s. Diurnal cu-up by Tuesday will be substantially reduced with low- level high pressure firmly in place.
422 PM MDT Mon Oct 24 2016 Broad upper ridge covers most of the CONUS, with a strong low pressure system off the Pac NW coast. Highs Tuesday will be generally in the 60s, a little warmer across southwestern SD and a little cooler across northwestern SD.
1132 AM MDT Mon Oct 24 2016 Only minor changes at this time for a bit more high cloudiness and slightly cooler highs on the northeast plains. Mid level flow turns more westerly and some cold advection as well late tonight so precipitation will be fairly widespread in the high country. In the meantime, temperatures will remain quite mild today with upper ridge axis and thermal ridge shifting slowly east across the region. The period of heaviest precipitation appears like it will be at the beginning of the trough passage Monday evening, so rain or snowfall amounts should be pretty light during Tuesday. After this disturbance passes, strong ridging will re-build over the state, bringing warmer temperatures and dry weather back to the region through the end of the week.
1225 PM CDT Mon Oct 24 2016 High pressure ridge builds in over the central conus resulting in a modest rebound in temps on Tuesday. Expect TSRA then to develop along lifting warm front within llvl theta-E convg zone.
Expect scattered showers and thundertorms to move from west to east today as low pressure moves through the northern Great Basin. Dry and warmer conditions will develop on Tuesday and continue for the next several days. As high pressure develops from Tuesday afternoon and the following few days, dry conditions with well above normal daytime temperatures will again dominate the weather across the Grand Canyon State.
/issued 1027 AM CDT Mon Oct 24 2016/ High pressure in place across the region will continue to result in dry quiet weather today. Conditions will be a tad warmer than those from the previous few days, as highs this afternoon range from the upper 70s to middle 80s.
As of mid afternoon, a surface analysis showed a cold front along the KY/TN border while high pressure was centered over Minnesota, dropping south and east. Expect a dry forecast throughout the short term as the high pressure moves from Minnesota to Michigan overnight. After a cool start, highs Tuesday will reach the low 60s across southern Indiana and the northern Bluegrass to mid/upper 60s across south-central Kentucky.
223 PM EDT Mon Oct 24 2016 A dry cold front will move through tonight followed by high pressure through the middle part of the week.
155 PM EDT Mon Oct 24 2016 Aviation Issued at 320 EDT Mon Oct 24 2016 High pressure building into Lower Michigan should bring fair and cool weather today and Tuesday.
/issued 357 AM CDT MON OCT 24 2016/ Another quiet night as high pressure remains in control of the regional weather pattern. The NWS radars are indicating light rain falling in south central Texas as an upper level trof is tracking to the northeast around the ridge. Plenty of sunshine will allow temperatures to climb into the lower 80s. The ridge aloft is expected to hold through the rest of the week.
214 PM EDT Mon Oct 24 2016 High pressure over the region through midweek.
459 PM EDT Mon Oct 24 2016 High pressure over the region through midweek.
The ridge aloft continues to keep drier air in place generally from about 6000 feet upwards, which is capping off any significant vertical development to the CU field trapped underneath.
Early this morning a very weak cold frontal boundary was positioned along the I70 corridor in central Missouri. Today will be a tad cooler than yesterday, especially across the eastern Ozarks as a very slightly cooler air mass filters in from the north. The bulk of "cooler" air should remain across the mid Mississippi River and Ohio River Valleys as the Canadian high drops south and east across the Great Lakes and into the Mid Atlantic. Although cooler temperatures are forecast, we did go a degree or two above guidance in the short term because of the recent cool bias among short term models. An upper level ridge remains in place across the plains. Overnight, southerly flow will keep temperatures warmer, especially across southeast Kansas.
High pressure over the area will provide another cool night tonight with light winds.
205 PM EDT MON OCT 24 2016 A dry cold front will move across central North Carolina this afternoon and evening.
200 PM PDT Mon Oct 24 2016 Scattered showers and isolated thunderstorms will continue through this afternoon under the trough of low pressure and instability aloft.
1219 PM MDT Mon Oct 24 2016 Early morning WV imagery and RAP analysis shows large scale ridging continuing to dominate the pattern across the central US. At the surface as front is stalled along the front range, with high pressure centered over the northern Mississippi River Valley extending south and west towards our CWA.
339 PM EDT Mon Oct 24 2016 High pressure will keep dry weather over the region tonight through Tuesday night.
A cold front is passing through northern California, with a band of precipitation, currently located north of I80, and west of the Sierra.
312 PM CDT Mon Oct 24 2016 High pressure will continue for the rest of day with the development of a trough in the lee of the Rockies on Tuesday.
446 PM EDT Mon Oct 24 2016 A cold front will move through the forecast area tonight with a reinforcing shot of cool air through Midweek. A cold front will move south and through the region during the 03z-06z time frame. A broad upper ridge will build over the Southeast. High pressure will ridge into the forecast area from the north at the surface. Slightly below normal high temperatures are forecast, in the lower to middle 70s. An upper-ridge over the center of the country will promote northwesterly flow aloft over the southeastern states through midweek.
151 PM EDT Mon Oct 24 2016 A cold front will continue to move south of the area this morning. A high pressure ridge will slowly build southeast across the western Great Lakes region by Tuesday morning.
405 PM EDT Mon Oct 24 2016 A cold front will move through the forecast area tonight with a reinforcing shot of cool air through Midweek. A cold front will move south and through the region during the 03z-06z time frame. A broad upper ridge will build over the Southeast. High pressure will ridge into the forecast area from the north at the surface. Slightly below normal high temperatures are forecast, in the lower to middle 70s. An upper-ridge over the center of the country will promote northwesterly flow aloft over the southeastern states through midweek.
Satellite imagery shows a well developed low pressure spinning off the coast of Oregon today. The associated weather front wrapped around the center of the low about two loops. A warm front will push north across the area Tuesday night, bringing in another round of rain.
650 PM EDT Mon Oct 24 2016 High pressure will keep dry weather over the region tonight through Tuesday night.
207 PM CDT Mon Oct 24 2016 Mid level ridging is evident in UA charts today per anticyclonic curvature and light winds in the 7h-5h layer. Persistent southerly low level flow will result in increased mstr overnight and favors the development of clouds/patchy light fog Tue AM along with warmer overnight lows across the Lower Trans Pecos/parts of the PB. Mid level ridging will briefly breakdown Tue as a shrtwv trof passes. Lower heights/better mstr/slightly cooler 85h temps are supportive of high temps a few degrees cooler Tue PM. A weak cold front will arrive too late to cool temps on Wed and high temps will be well above normal again, especially with typical tendency for pre-frontal warming. Prominent mid level ridging again Thur will maintain dry and warm pattern.
Overnight, precip will spread eastward over the mountains, with a period of rain/snow likely over the higher peaks of the central and southwest mountains, mainly 06z-12z. Breezy west winds behind the trough will lead to fairly deep mixing through the first half of the day, and expect rather warm max temps on the plains before weak cold front shifts winds to the north and brings some slightly cooler air to the area late.
High pressure over Minnesota is expected to slide east across the region tonight. Light winds and mostly clear skies are anticipated, as the high moves across the area. The high moves out of the region on Tuesday, and allows for east southeast winds to develop over the area. The GFS/Canadian models continue to bring some QPF into the southern and western portions of the area on Tuesday, with more moisture in the low levels.
Ridge of high pressure has shifted just east of NM as a weak short wave trough ejects east out of a potent storm off the Pacific Northwest. This trough will lift northeast and only provide rain chances across the northwest third or so of the forecast area.
/issued 1026 AM EDT Mon Oct 24 2016/ High pressure remains the dominant weather feature across the region. Temperatures will come in just a couple of degrees warmer than yesterday, with highs near 80 degrees across all of west central and southwest Florida. Breezy northeast winds will continue the next couple of days as high pressure remains just north of the area. and off the Atlantic coast Tuesday, allowing strong high pressure to build in across the Mid- Atlantic. The gradient looks to weaken slightly this weekend as high pressure slips southward over the northern waters with improving marine conditions.
A weak cold front will move through Middle Tennessee today. High pressure will begin to build in from the Ohio Valley this afternoon. Winds will shift to the north but remain light and high temps along the KY border will be a degree or two cooler than yesterday. Highs will range from the lower 70s north to upper 70s south.
ThE closed low off of the Pacific Northwest is sending southwest flow aloft over the region. sending the upper ridge further downstream. Tuesday will offer drier weather but another weak upper level impulse will move across southern Montana and northern Wyoming ahead of the Pacific trough.
Nw flow trough passing north of area will bring a few showers to far northern cwa on Wed, although moisture will be meager, a rumble or two of thunder is possible. Extended these isold pops a little further south into extreme northcentral LA Wed eve as trough digs a little on backside of broad upper low movg across great lakes. Upper ridge reestablishes and continues thru the weekend and beyond.
503 PM EDT Mon Oct 24 2016 High pressure extends across the southeastern states and into the Florida peninsula.
345 PM CDT MON OCT 24 2016 Cirrus clouds continue to stream across the area this afternoon as an upper-level trough axis digs southward into the Gulf. This will keep highs in the upper 70s right along the Georgia state line, while elsewhere the warming trend will continue with highs in the low to mid 80s.
314 PM CDT Mon Oct 24 2016 A weak and cloud free cold front was sagging southwest from the MO bootheel through southern TN to near CHA. Ridge tops may experience winds of 5-10 mph most of tonight. Temperatures should drop into the lower to middle 40s in valley, and remain a bit warmer over and adjacent to area lakes and on ridge tops. We will go closer to the warmer NAM values in the l-m80s. So going with lows slightly above guidance in the west, but going a bit cooler than guidance in our typical drainage cooling valleys in our east.
121 PM EDT Mon Oct 24 2016 Another cold front will move through the area this evening with a reinforcing shot of cool air through Midweek. just some high thin clouds streaming east from short wave trough in the southern stream over east Texas. A cold front currently over central Virginia will move south through the region this evening between 03z-06z. A broad upper ridge will build over the Southeast. High pressure will ridge into the forecast area from the north at the surface. Slightly below normal high temperatures are forecast, in the lower to middle 70s. An upper ridge over the center of the country will promote northwesterly flow aloft over the southeastern states through mid week.
There is a strong low pressure system associated with the front offshore, but the low is moving north, drifting away from the area.
119 PM EDT Mon Oct 24 2016 Cooler temperatures today with a few sprinkles or a shower, especially north and east of Pittsburgh.