Aikyam-Lab/Synoptic-Bench huggingface dataset:
SKIES ARE PARTLY TO MOSTLY SUNNY AT MID AFTERNOON WITH TEMPERATURES IN THE LOWER 90S AT LOWER ELEVATIONS. HOT AND HUMID CONDITIONS CONTINUE MONDAY AS UPPER RIDGE REMAINS OVER FORECAST AREA. THE EASTERN SECTIONS OF THE AREA WILL BE ON THE EDGE OF THE RIDGE WITH A SLIGHT CHANCE OF STORMS CENTRAL AND NORTHEAST AND A LITTLE HIGHER CHANCE IN THE HIGHER ELEVATIONS.
WITH STACKED HIGH PRESSURE OVER THE NORTHERN GULF COAST, THE SEA- BREEZE FRONT WILL BE THE MAIN FORCING FOR CONVECTION TODAY, ALTHOUGH CONVECTION IN OUR NORTHERN ZONES WILL BE ENHANCED SLIGHTLY BY THE REMNANTS OF POST-TROPICAL CYCLONE BILL AS IT MOVES OFF THE MID- ATLANTIC SEABOARD.
235 PM EDT SUN JUN 21 2015 A COLD FRONT WILL BRING SCATTERED SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND INTO THE EARLY EVENING HOURS. HIGH PRESSURE WILL PROVIDE MOSTLY SUNNY SKIES ON MONDAY.
1126 AM MDT SUN JUN 21 2015 HIGH CLOUDS CURRENTLY INVADING WESTERN AND SOUTHERN PORTIONS OF THE DISTRICT EARLY THIS MORNING AS MOISTURE PASSES THROUGH THE TOP OF UPPER RIDGE CENTERED ACROSS THE DESERT SOUTHWEST. SOME OF THE HIGH RES MODELS SUGGEST THIS BOUNDARY WILL GET REINFORCEMENT LATER THIS MORNING FROM CONVECTIVE OUTFLOW FROM THUNDERSTORMS ACROSS CENTRAL NE. UPPER RIDGE WILL SHIFT EASTWARD OVER NM/AZ/SRN CO THIS AFTERNOON. TO AROUND 3-5 DEGREES C WARMER THAN THOSE OF YESTERDAY ACROSS THE SOUTHEAST PLAINS AS SOUTHERLY WINDS INCREASE. LEE TROFFING SHOULD ALSO KEEP A RIBBON OF WARMER TEMPERATURES ALONG THE LOWER EASTERN SLOPES OF THE SE MTS WHERE WESTERLY DRAINAGE WINDS WILL CONTINUE THROUGH THE NIGHT.
413 PM EDT SUN JUN 21 2015 LOW PRESSURE IN THE GULF OF MAINE WILL TRACK EAST ACROSS NOVA SCOTIA TONIGHT. HIGH PRESSURE WILL BUILD INTO THE AREA LATE MONDAY THEN SLIDE EAST OF THE REGION MONDAY NIGHT.
355 PM EDT SUN JUN 21 2015 A WEAK COLD FRONT MOVES THROUGH THE REGION TONIGHT.
629 PM EDT SUN JUN 21 2015 OUR REGION WILL BE IN THE WESTERLY/NORTHWESTERLY FLOW ON THE NORTHERN FLANK OF A MASSIVE SUBTROPICAL RIDGE. THUS AS COLD FRONTS APPROACH THEY CAN RAPIDLY PULL IN SOME WARM MOIST AIR.
Upper level ridging will keep the weather pattern quiet tomorrow through the early part of the week.
133 PM EDT SUN JUN 21 2015 A COLD FRONT WILL MOVE THROUGH THIS EVENING. WEAK HIGH PRESSURE BUILDS IN LATE TONIGHT AND MONDAY.
455 PM EDT SUN JUN 21 2015 A WEAK COLD FRONT MOVES THROUGH THE REGION TONIGHT.
BUT A SURGE OF SLIGHT COOLER AIR AND UPSLOPE ARE PROGGED IN HERE MONDAY MORNING. TEMPERATURES ON MONDAY LOOK TO BE 3-5 C COOLER THAN TODAY'S EVENTUAL HIGHS. MODELS SHOW A STRONG EARLY SUMMER UPPER RIDGE PATTERN TAKING HOLD OF THE WESTERN CONUS. HOWEVER WEAK MID-LEVEL DISTURBANCES ROUNDING THE TOP OF THIS FLAT UPPER RIDGE MAY STILL MANAGE TO PRODUCE LIMITED WHICH MODELS SHOW PRODUCING RAIN COOLED OUTFLOW BACKING INTO NERN COLORADO.
AND IN CLOSE PROXIMITY TO A TROUGH OF LOW PRESSURE WHICH ID MOVING SOUTH TOWARD THE LOCAL AREA. THE TROUGH TO THE NORTH WILL CONTINUE TO PUSH SOUTH INTO THE AREA THIS EVENING. WITH LOWS IN THE LOWER/MID 70S INLAND TO THE UPPER 70S COAST. WITH SURFACE RIDGING PERSISTING TO THE SOUTH EXPECT ANOTHER HOT DAY.
409 PM EDT SUN JUN 21 2015 OUR REGION WILL BE IN THE WESTERLY/NORTHWESTERLY FLOW ON THE NORTHERN FLANK OF A MASSIVE SUBTROPICAL RIDGE. THUS AS COLD FRONTS APPROACH THEY CAN RAPIDLY PULL IN SOME WARM MOIST AIR.
204 PM CDT Sun Jun 21 2015 The subtropical ridge is centered across wrn NM today with deeper/stronger NE flow aloft across the CWFA. By Monday PM the chance for SHRA/TSRA will increase across the Lower Trans Pecos as an inverted trof moves west.
226 PM PDT SUN JUN 21 2015 COOLER TODAY AND MONDAY WITH DAYTIME HIGHS SLIGHTLY BELOW NORMAL.
148 PM EDT SUN JUN 21 2015 A COLD FRONT WILL BRING SCATTERED SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND INTO THE EARLY EVENING HOURS. HIGH PRESSURE WILL PROVIDE MOSTLY SUNNY SKIES ON MONDAY.
321 PM CDT SUN JUN 21 2015 ISOLATED TO SCATTERED CONVECTION MAY TRY TO MAKE A RUN AT THE AREA IN VICINITY OF AN UPPER LEVEL INVERTED TROUGH. AN EXPANDING RIDGE WILL LIKELY SUPPRESS ANY CONVECTION BEFORE REACHING THE FA THIS AFTERNOON/EVENING. THE CENTER OF THIS RIDGE WILL TRACK NORTH OF THE FA TOMORROW WITH THE INVERTED TROUGH BRINGING SLIGHTLY LOWER HEIGHTS OVER THE SOUTHERN HALF OF THE REGION. RIDGE WILL PRETTY MUCH REMAIN IN CONTROL FOR MUCH OF THE FIRST HALF OF THIS WEEK.
418 PM CDT SUN JUN 21 2015 LITTLE TO NO CONVECTION ACROSS THE AREA THIS AFTERNOON AS SUBSIDENCE ASSOCIATED WITH LOW TO MID LEVEL RIDGING PREVAILS. THIS SHOULD BE THE CASE AGAIN TOMORROW AS THE RIDGE AXIS. THE TUE THROUGH THU TIME PERIOD OFFERS THE BEST RAIN CHANCES THIS WEEK ONCE THE RIDGE AXIS IS POSITIONED TO THE NORTH. WHILE ON THU A WEAK INVERTED TROF IS PROGGED TO ADVANCE THROUGH THE REGION. RAIN CHANCES TAPER OFF FRI AND SAT AS THE LOW/MID LEVEL RIDGING SINKS SOUTHWARD INTO THE GULF. GLOBAL MODELS CONTINUE TO DEPICT A DIGGING ERN CONUS TROF THAT SENDS A CDFNT INTO THE AREA ON SUNDAY. 13 A LIGHT ONSHORE FLOW CAN BE EXPECTED AS THE SUBTROPICAL HIGH CONTINUES RIDGING OVER THE GULF.
110 PM EDT SUN JUN 21 2015 POST TROPICAL CYCLONE BILL LIFTS AWAY FROM THE AREA TODAY. A WEAK COLD FRONT APPROACHES FROM THE NORTHWEST TODAY AND MOVES THROUGH THE REGION TONIGHT.
RIDGING IN THE LOWER PART OF THE ATMOSPHERE WILL CONTINUE TO DOMINATE THE WEATHER OVER THE NEXT SEVERAL DAYS. LOW LEVEL RIDGE AXIS ACROSS THE REGION SHIFTS SLIGHTLY NORTH THROUGH TUE WHICH ALLOWS A MORE E TO SE FLOW PATTERN AT LOWER LEVELS. CONTINUE TO SUGGEST MID LEVEL RIDGE WILL BUILD OVER THE WESTERN U. LATE WEEK INTO THE WEEKEND WITH MID LEVEL TROUGH DEVELOPING OVER THE CENTRAL UNITED STATES EXTENDING TOWARD THE GULF COAST. WEAK RIDGING DOMINATES AT THE LOWER LEVELS WITH AXIS BEING SUPPRESSED SOUTHWARD INTO GULF BY END OF WEEK AND WEEKEND. BY LATE WEEKEND IF MID LEVEL TROUGH DEVELOPS OVER CENTRAL U.
THOUGH DELAYED HEATING DUE TO EARLY MORNING STRATUS PLUS HIGH SURFACE DEWPOINTS HAVE KEPT USUALLY HOT LOCATIONS ACROSS THE LOWER ARK VALLEY A FEW DEGREES COOLER THAN EXPECTED.
MVFR to VFR will prevail today in advance of the sunset passage of a cold front. /issued 303 AM CST Sun Jan 9 2022/ SHORT TERM (Now through Monday): The most recent surface analysis suggests that a trough is working west and north through the BRO CWFA. In fact, the temperature and dewpoint temperature rocketed up ten degrees in one hour (from the low 60s to the low 70s) in the city of Edinburg. Very warm conditions are expected today, and although most of the day will be dry, the slow passage of a cold front later today will bring scattered showers to Deep South Texas and the Rio Grande Valley, with more numerous activity for the adjacent coastal waters.
202 AM PST Sun Jan 9 2022 Fair, dry, and warmer weather will prevail this week as Santa Ana conditions develop. Strong high pressure over the Great Basin, and low pressure offshore will support the offshore flow and locally gusty winds at times below the passes and canyons. Temperatures will be above average through at least midweek, with some cooling expected by week's end as stalled low pressure over the Pacific is drawn closer to the coast. Ridging will broaden over the West through midweek, as low pressure offshore is forced farther to the SW. Given this Santa Ana pattern, the forecast is trending warmer, with above average temperatures.
Expect temperatures this afternoon to be in the teens and lower 20s for most of the area, except south central SD with highs in the 30s where warm air advection (WAA) may have the greatest impact and in southwestern MN/east central SD where snow pack helps keeps temps in the lower teens. Clouds increase this afternoon and into the evening across eastern SD into southwestern MN as a mid and upper trough swings through the the upper Plains and Midwest.
Today Through Monday Night A warm front lifted north into central sections of the CWA Sat evening. A cold front was beginning to drop SE into NWRN AR early this morning. Regional radar imagery depicts scattered SHRA and a few TSRA generally long/south of the warm front. Temps south of the warm front were in the 60s. The aforementioned cold front will pick up SWD momentum later this morning. but maybe a deg or 2 warmer.
316 AM MST Sun Jan 9 2022 Building high pressure aloft will dominate our weather through Monday. it will be dry and warmer. Upper level ridge to our west and anticyclonic NW flow aloft are producing a klondike chinook at this time. JKL Large-scale upper ridging will dominate the western CONUS during this time leading to mainly dry and seasonably mild conditions for our region.
403 AM EST Sun Jan 9 2022 A wedge of high pressure has built into NE GA ahead of the approaching frontal system developing over the upper OH and Mid MS river valleys. These clouds have kept things a bit warmer so if we see any showers before sunrise, thinking we will not see any mixed freezing or frozen precipitation ahead of the main frontal system. Monday will be the coldest night of the next seven with lows dipping below freezing across the entire CWA.
455 AM MST Sun Jan 9 2022 Latest GOES 16/17 Satellite imagery shows the 500mb trough that moved through yesterday positioned over the central US with the larger vorticity maxima approaching the Great Lake region. In the wake of this system, northwest flow sits over the CWA as upper level ridging begins to take place today.
/Today through Monday/ The cold front is hard to pick out with left over cold air still north of our I-30 corridor where low to mid 50s now are the warmest readings we have seen overnight along with some patchy dense fog. And with that, get ready because high pressure fresh from Canada has below average temps back in place for us on Monday for a cold start to the week.
A ridge of high pressure will rebuild over the region today and early in the week with temperatures holding near normal.
Winds will remain gusty today, slowly veering with time ahead of an approaching cold front. Deep southwesterly flow at the surface and in the mid levels is pushing warmer air and plenty of moisture into the southeastern CONUS this morning. An upper level trough is digging into the eastern half of the country, with a cold front approaching the region from the NW. Even without the stronger CAPE values realized, the shear profiles are looking more favorable with 0-6km shear in the 30-40kt range, some veering in the low levels, and better winds aloft to help support any of the stronger convection that develops.
Cloud cover will slowly increase across the area today as the trough nears. High pressure will quickly reestablish and persist through midweek.
305 AM CST Sun Jan 9 2022 The cold front has made its way all the way through the CWA as of 2 AM (08Z) this morning and continues to push south into the Permian Basin and Big Country. As the upper trough that brought the cold front moves over the region today, high clouds will stream over the region within the southwesterly flow aloft.
A few 20 to low 30 degree readings will be possible over portions of central South Dakota, slightly warmer today. The main area of dry high pressure overhead this morning will sink to our south, with a ridge lingering over northeastern SD and western MN as a larger area of high pressure nears from Saskatchewan. With the nearby high or ridge, winds will remain light through the period.
As the high builds eastward today these winds will eventually relax. Will see the upper level ridge over the intermountain west shift eastward bringing increasing thicknesses indicating warmer temperatures returning to the region.
High pressure recently situated over the Mid- Atlantic has shifted offshore. The aforementioned high will continue to advance eastward as a longwave trough approaches from the west. The Upper Keys will continue to be the hot spot for shower activity over the next few days, as this is where the highest moisture will be.
500 AM MST Sun Jan 9 2022 Updated Aviation Discussion High pressure building across the region will bring dry conditions through much of the upcoming week with temperatures warming to near seasonal averages for most areas today, though colder temperatures will linger through this morning along the Hi-line and through this afternoon along the Milk River Valley.
High pressure remains overhead with mostly clear skies.
347 AM CST Sun Jan 9 2022 Temperatures increased through the overnight, helping to decrease additional chances of freezing drizzle across portions of central and eastern Illinois.
204 AM PST Sun Jan 9 2022 High pressure will bring valley inversions with increased air stagnation through at least the middle of the week. Winds in valleys are for the most part light as radiational cooling-induced inversions develop over land, with E-SE winds over Pyramid Lake and Lake Tahoe elevated at 10-20 mph with the warmer lake surfaces resisting inversion formation and allowing the surface gradient to be felt. For the Sierra, easterly winds are blowing at a modest 10-20 mph for the Tahoe crest while higher crest spots above ~9000 feet are already coming around to the south-southwest flow aloft with subsidence under the upper ridge. Longwave ridging over most of the West will keep major precipitation events far north (Pac NW and British Columbia) of northeast CA and western NV.
917 AM EST Sun Jan 9 2022 Widespread rain will end as a cold front sweeps through the area today. High pressure will build into the region bringing a return to below normal temperatures for the beginning of the work week.
These are all elevated and east and northeast of a warm front extending from near Memphis through eastern MS into far south AL. Dew points in the warm sector southwest of the warm front are in the 60s. However, the cold front now dropping southeast through northwest TN will arrive rather quickly this afternoon. Expect overnight lows will drop down into the low to mid 20s with windchill values down into the upper teens to low 20s. Northerly to northwesterly flow will feature throughout the short-term forecast period with the upper trough slowly exiting to the east. Skies on Monday will be sunny but highs will only be in the low to mid 40s.
A large area of high pressure has started moving into our CWA and will bring plenty of sunshine though a few of those clouds may linger through the morning hours. As this occurs, a Rex Block wants to set up over the desert southwest which will keep an area of low pressure off the Baja Coast in check. In the grand scheme of things, we'll still see plenty of sunshine, remain dry, as highs become about 2 to 5 degrees cooler than those seen today. If models are correct with the high holding it's position, as alluded to above, the rex block will remain over the southwest CONUS, which will continue to hold the low off the Baja Coast for a couple of days.
526 AM CST Sun Jan 9 2022 (Today) A cold front extends from northwest Arkansas into southeast Oklahoma early this morning. With the passage of the cold front, temperatures are set to be below normal for this time of year.
Winds will slowly relax through the afternoon as high pressure begins to approach, but it will remain breezy through the day. However lighter surface flow beneath the ridge later Monday into Monday night may preclude the need for any wind chill advisories. A pattern shift will occur through the mid to latter portion of the week with a return to warmer, above average temps.
419 AM CST Sun Jan 9 2022 (Issued 347 AM CST Sun Jan 9 2022) Today through Monday: The cold front is moving through early this morning and and arctic air mass will move in behind it with temperatures falling through this morning and barely rebounding during the day with afternoon temperatures in the upper single digits to teens. Lift is weak with only some positive vorticity advection with the trough moving overhead. Winds will gradually weaken through the day as high pressure builds in.
414 AM MST Sun Jan 9 2022 High pressure building across the region will bring dry conditions through much of the upcoming week with temperatures warming to near seasonal averages for most areas today, though colder temperatures will linger through this morning along the Hi-line and through this afternoon along the Milk River Valley.
643 AM CST Sun Jan 9 2022 (Today and tonight) Another strong cold front has moved through the area overnight with gusty north winds that will continue through the day.
645 AM EST Sun Jan 9 2022 Widespread rain will end as a cold front sweeps through the area today. High pressure will build into the region bringing a return to below normal temperatures for the beginning of the work week.
Winds will become elevated and gusty out of the north this morning as a cold front moves into the area. (Today through Monday afternoon) An upper level trough is over the Upper Midwest and extends southwest towards New Mexico and Arizona. A cold front is moving southward across West Texas and Southeast New Mexico this morning. The cold front will continue moving across the area today with gusty north to northeast winds. The upper trough will move over the eastern part of the country on Monday.
A broad upper level trough, currently making its way through the Central Plains and Upper Midwest, is trekking east and is expected to push a cold front into our area by late tonight/early tomorrow morning. Winds behind the front will quickly turn to the north and become gusty as a high pressure system will begin pushing it's way south into the Southern Plains, tightening the pressure gradient. This will bring ample cold air advection with it as the northerly winds will be pulling from a much cooler and drier airmass behind the front.
/Issued 403 AM EST Sun Jan 9 2022/ A wedge of high pressure has built into NE GA ahead of the approaching frontal system developing over the upper OH and Mid MS river valleys. These clouds have kept things a bit warmer so if we see any showers before sunrise, thinking we will not see any mixed freezing or frozen precipitation ahead of the main frontal system. Monday will be the coldest night of the next seven with lows dipping below freezing across the entire CWA.
419 AM EST Sun Jan 9 2022 Widespread rain will end as a cold front sweeps through the area today. High pressure will build into the region bringing a return to below normal temperatures for the beginning of the work week.
High pressure will bring dry weather with mainly light winds through Monday.
635 AM EST Sun Jan 9 2022 Aviation - Falling Temperatures Behind Cold Front Today A cold front will move into the area around sunrise this morning squashing any lingering drizzle and resulting in temperatures gradually falling throughout the day today. Meanwhile another mid-level trough will slide into the region with accompanying moisture.
Today, the upper level ridge pushes off further to the east with an upper level ridge developing in the Western CONUS. In spite of the transition to sunnier skies, temperatures will remain cool and slightly below normal in the 30's and low 40's as the cooler air mass behind the cold front sets up across the Plains. Tonight, cool skies will allow temperatures to cool into the teens again with cooler temperatures approaching the single digits possible.
These storms have shown a tendency for rotation, and this is supported by the VWP from KPOE which shows 40-45 KT winds in the lowest 4-5K FT, suggestive of Storm Relative Helicity values between 250 and 300 m2/s2. This activity is associated with an upper level disturbance moving acrs the area in southwesterly flow aloft, in advance of a cold front situated northwest of the region.
Latest surface analysis shows a cold front extending from just south of KSTL to just west of the PAH forecast area into north central Arkansas. Temperatures by sunset will be in the lower to middle 30s.
Meanwhile, enhanced moisture is pivoting around the periphery of a low to mid level mean-layered ridge situated just off the Carolina and Georgia coastlines. High pressure off the east coast of the U.
514 AM CST Sun Jan 9 2022 Quiet weather across the High Plains with early morning satellite imagery showing just some patchy mid clouds along with some lower stratocumulus from the sandhills into the panhandle of Nebraska. Expect today will be a bit cooler than yesterday with highs generally in the middle 30s to around 40 degrees with an afternoon breeze to contend with. However with a high amplitude upper trof over the western US starting to push eastward, we can expect quiet weather to continue as a trend toward warming temperatures becomes established. Ensemble guidance continues to show a strong signal for dry conditions with a notable warming trend as the western ridge takes control of our weather through midweek.
SHORT TERM (Now through Monday): The most recent surface analysis suggests that a trough is working west and north through the BRO CWFA. In fact, the temperature and dewpoint temperature rocketed up ten degrees in one hour (from the low 60s to the low 70s) in the city of Edinburg. Very warm conditions are expected today, and although most of the day will be dry, the slow passage of a cold front later today will bring scattered showers to Deep South Texas and the Rio Grande Valley, with more numerous activity for the adjacent coastal waters.
718 AM EST Sun Jan 9 2022 Rain is expected until a cold frontal passage this afternoon, which will bring temperature back below freezing.
459 AM CST Sun Jan 9 2022 Deep southwesterly flow at the surface and in the mid levels is pushing warmer air and plenty of moisture into the southeastern CONUS this morning. An upper level trough is digging into the eastern half of the country, with a cold front approaching the region from the NW. Even without the stronger CAPE values realized, the shear profiles are looking more favorable with 0-6km shear in the 30-40kt range, some veering in the low levels, and better winds aloft to help support any of the stronger convection that develops.
447 AM CST Sun Jan 9 2022 Southwesterly flow aloft prevailed over the Midsouth early this morning, in advance of a partially-phased deepening neutral-tilt northern branch and a positively-tilted southern branch trofs. The northern and southern branches likely to consolidate into a deepening longwave trof over the eastern CONUS on Monday. In the interim, the positive tilt nature of the southern branch trof will dictate a relatively slow cold front passage through the Midsouth into early afternoon. After this wave passes to the east, the cold front will pick up speed through the afternoon, with stronger winds driving south through the delta.
High pressure will remain over the area today before a weak upper trough drops pushes through the area on Monday.
High pressure will build across the region today, bringing dry weather heading into the upcoming week. As this high strengthens, valley inversions will become established across northern and central Utah.
Cold front is knocking on our door and will be shifting S/SW winds 10-20kt to NW15-25kt and eventually NE10-20KT by late day. /Today through Monday/ The cold front is hard to pick out with left over cold air still north of our I-30 corridor where low to mid 50s now are the warmest readings we have seen overnight along with some patchy dense fog. And with that, get ready because high pressure fresh from Canada has below average temps back in place for us on Monday for a cold start to the week.
A strong upper level ridge builds into the West this week. This incoming ridge will keep things dry and slowly erode our Arctic temperatures away.
300 AM MST Sun Jan 9 2022 Short term forecast will be dominated by the building H5 ridge across the Intermountain West, pushing the active flow well to the north. A weak wave will sweep through in the northwesterly flow this morning, bringing a slightly cooler airmass into the region today. WIth lighter winds and strengthening ridging aloft, any remaining cold pools in local basins will remain in place, especially for the Upper Green River basin and the Wind River basin, keeping temperatures from moderating considerably into Monday.
503 AM CST Sun Jan 9 2022 (Today and tonight) A cold front has passed south of San Angelo as of 4 AM CST. Highs will be quite a bit cooler when compared to yesterday.