Aikyam-Lab/Synoptic-Bench huggingface dataset:
A REINFORCING DRY COLD FRONT COMING DOWN FROM THE NORTH LATER TONIGHT SHOULD WORK TO MIX UP THE BOUNDARY LAYER A BIT AND ULTIMATELY KEEP PREVIOUSLY FORECASTED LOWS RANGING FROM THE LOWER 50S TO UPPER 40S ON TRACK. VFR CONDITIONS ARE EXPECTED OVER THE NEXT 24 HOURS AS HIGH PRESSURE REMAINS IN CONTROL OF THE WEATHER ACROSS THE REGION. TODAY WAS A BIT WARMER THAN INITIALLY EXPECTED WITH MUCH OF THE CWA REACHING 80 DEGREES. THIS WILL RESULT IN MAX TEMPS BEING A COUPLE DEGREES WARMER THAN GUID IS OFFERING AND HAVE TRENDED THAT WAY. THE TEMP TREND WILL BE FOR COOLER NIGHTS AND WARMER DAYS.
1148 PM CDT THU APR 30 2015 COLD FRONT ENTERING ERN FCST AREA NEAR A WARROAD TO FOSSTON TO NEAR WAHPETON LINE. UPPER LEVEL TROUGH OVER MT WILL MOVE ACROSS THE FORECAST AREA TONIGHT. PRECIPITATION WAS GENERALLY IN THE 700 HPA THETA-E RIDGE OR THE GRADIENT. NEXT TROUGH OVER THE GULF OF AK WILL MOVE ACROSS SOUTHERN CANADA ON SUN. TROUGH WILL SEND ANOTHER COLD FRONT ACROSS THE FORECAST AREA SAT AFTERNOON AND SAT NIGHT.
705 PM CDT THU APR 30 2015 COLD FRONT FROM CAVALIER TO JUST WEST OF GRAFTON THEN TO NEAR COOPERSTOWN TO JAMESTOWN TO WEST OF OAKES. DEW PTS DO RISE IN THE COOLER AIR BEHIND THE FRONT AS THE AIRMASS SATURATES. UPPER LEVEL TROUGH OVER MT WILL MOVE ACROSS THE FORECAST AREA TONIGHT. PRECIPITATION WAS GENERALLY IN THE 700 HPA THETA-E RIDGE OR THE GRADIENT. NEXT TROUGH OVER THE GULF OF AK WILL MOVE ACROSS SOUTHERN CANADA ON SUN. TROUGH WILL SEND ANOTHER COLD FRONT ACROSS THE FORECAST AREA SAT AFTERNOON AND SAT NIGHT.
944 PM EDT THU APR 30 2015 AN UPPER LOW OVER INDIANA WILL SINK SOUTHEAST OVERNIGHT.
933 PM EDT THU APR 30 2015 MARINE HIGH PRESSURE WILL BRING FAIR WEATHER THE REMAINDER OF THE WEEK AND INTO MUCH OF THE WEEKEND.
741 PM EDT THU APR 30 2015 A DEEP UPPER LEVEL LOW CONTINUES TO SPIN ACROSS THE OHIO RIVER VALLEY REGION THIS AFTERNOON. CONTINUING TO RECEIVE MULTIPLE REPORTS OF SMALL HAIL AND THIS TREND SHOULD CONTINUE INTO THE EVENING HOURS WITH FREEZING LEVELS AROUND 5500 FEET. UPPER LEVEL LOW SHOULD MOVE FAR ENOUGH EAST BY LATE FRIDAY MORNING TO KEEP THE AREA DRY THROUGH THE REMAINDER OF THE DAY. WE MAY KEEP SOME CLOUDS AROUND THROUGH THE DAY GIVEN NO STRONG PUNCH OF DRY AIR OR RIDGING. CLOUDS SHOULD FINALLY ERODE FRIDAY NIGHT AS RIDGING BUILDS OVER THE REGION. THE AREA WILL STAY COOL THROUGH FRIDAY NIGHT AS WE CONTINUE TO BE INFLUENCED BY THE CLOUD COVER AND UPPER LEVEL LOW. AN EASTERN CONUS UPPER TROUGH WILL BE IN THE PROCESS OF MOVING OUT TO THE EAST AS THE PERIOD STARTS.
800 PM EDT THU APR 30 2015 VIGOROUS MID/UPPER LOW PRESSURE CROSSES TO OUR SOUTHEAST TONIGHT. HIGH PRESSURE FOR THE WEEKEND. AN UPPER LEVEL LOW PRESSURE SYSTEM DROPS SOUTH INTO OH TONIGHT. AS THE LOW EXITS SOUTHEAST. WENT CLOSER TO THE COOLER BIAS CORRECTED ECMWF FOR LOWS TONIGHT. INSTABILITY AND LOW LEVEL UPSLOPE FLOW WANE FRI EVENING WITH LOSS OF HEATING AND UPPER LEVEL TROUGH PULLING AWAY. OTHERWISE HIGH PRESSURE SAILS SLOWLY ACROSS THE AREA THIS WEEKEND TO PROVIDE NICE WEATHER. UPPER LEVEL RIDGING BUILDS TO THE W OF THE FCST AREA.
SHOWERS WILL END EARLY OVERNIGHT AS AN UPPER LOW MOVES SOUTHEAST. HIGH PRESSURE AND UPPER RIDGING WILL THEN BUILD IN WITH A WARM DRY WEEKEND. CENTER OF UPPER LOW WAS ACROSS NORTHEAST KENTUCKY THIS EVENING. EXPECT DRY WEATHER REST OF TONIGHT AS HIGH PRESSURE BUILDS IN JUST WEST OF INDIANA OVERNIGHT. LOW TEMPERATURES WILL RANGE FROM THE UPPER 30S OVER WESTERN SECTIONS TO THE LOWER 40S IN THE EAST. FORECAST CHALLENGES LARGELY FOCUSES ON TEMPS AS HIGH PRESSURE AND RIDGING ALOFT BRING WARMER AIR INTO THE OHIO VALLEY. THE UPPER LOW PASSING THROUGH THE REGION THIS AFTERNOON WILL BRING TO AN END THE LAST 7-10 DAY PERIOD WHICH HAS BEEN HIGHLIGHTED BY A BLOCKY UPPER LEVEL PATTERN OVER THE CONTINENTAL U S AND A PERSISTENT TROUGH OVER THE EASTERN STATES.
THE 8 PM EDT REGIONAL SURFACE ANALYSIS SHOWED A COLD FRONT NEAR THE GA-TN BORDER.
WATCHING SEVERAL WEAK SHOWERS WEST RIVER ALONG THE TROF AXIS. HIGH PRESSURE FOLLOWS FOR FRIDAY.
THEN TEMPERATURES WILL TREND DOWNWARD OVER THE WEEKEND AS A TROUGH OF LOW PRESSURE BRINGS COOLING AND A DEEPER MARINE LAYER.
WITH HIGHS EXPECTED TO PEAK IN THE LOW 80S. ALSO COULD SEE SOME LOW CLOUDS OVER OUR EASTERN AL COUNTIES THIS MORNING FROM CLOUD COVER ADVECTING AROUND THE LOW IN GA.
THIS IS DUE TO MOIST SURFACE CONDITIONS WITH DRIER AIR ALOFT UNDER HIGH PRESSURE. WITH HIGH PRESSURE OVER THE AREA. ANOTHER BEAUTIFUL DAY IS IN STORE UNDER PARTLY CLOUDY SKIES WITH TEMPERATURES REACHING INTO THE LOW TO MID 90S.
UPPER LEVEL RIDGING BEGINS TO RETREAT WEST ON MONDAY BUT 850 MB TEMPS REMAIN QUITE WARM. PW VALUES INCREASE MONDAY NIGHT IN ADVANCE OF A SLOW MOVING COLD FRONT.
THE COLD FRONT HAD JUST ARRIVED IN BEACH WITH WINDS NOW ALREADY GUSTING TO 48 MPH. COLD FRONT CONTINUES TO PUSH THROUGH CENTRAL MONTANA WHILE SOME HIGH CLOUDS CONTINUES TO STREAM AHEAD OF THE SYSTEM INTO PORTIONS OF NORTH DAKOTA. FAST MOVING AREA OF LOW PRESSURE WILL PROPAGATE ACROSS SOUTHERN CANADA TODAY/TONIGHT. THIS LOW WILL BRING A COLD FRONT THROUGH BY THIS AFTERNOON. AS THE LOW PUSHES FURTHER EAST SUNDAY EVENING. WILL KEEP THE HIGH WIND GOING OVER MUCH OF THE AFOREMENTIONED AREA THROUGH THE MORNING. A COOLER DAY IS EXPECTED IN THE WAKE OF THE DEPARTING FRONT WITH SEASONAL TEMPERATURES ON TAP. A STRONG COLD FRONT WAS JUST CROSSING THE BORDER INTO NORTH DAKOTA FROM MONTANA AS OF 15 UTC.
EASTWARD TRANSLATION OF H85 THERMAL RIDGE OVER THE HIGH PLAINS ALONG WITH AFOREMENTIONED DOWNSLOPE BREEZES WILL LEAD TO TEMPERATURES TOPPING OUT IN THE UPPER 80S NORTHWEST TO MID-UPPER 90S EAST WHERE THE SENSIBLE HEAT FLUX WILL HAVE GREATER CONTROL OVER DRIER SOILS/VEGETATION. WINDS WILL VEER AHEAD OF AN APPROACHING COLD FRONT TONIGHT WHILE REMAINING ELEVATED NEAR OR ABOVE 10 MPH.
1150 AM EDT SUN OCT 11 2015 HIGH PRESSURE OVER THE REGION WILL WEAKEN. A SERIES OF COLD FRONTS WILL SWEEP THROUGH THE GREAT LAKES REGION DURING THE EARLY TO MIDDLE PART OF THE WEEK. REGIONAL SOUNDINGS SHOW VERY LIMITED MOISTURE IN THE LOW AND MID LEVELS ACROSS THE AREA THIS MORNING SO EXPECT LITTLE IN THE WAY OF CLOUD COVER EXCEPT SOME THIN HIGH CIRRUS. WILL SUPPORT TEMPERATURES ABOUT 10F WARMER THAN YESTERDAY. A SERIES OF COLD FRONTS WILL SWEEP ACROSS THE LOWER LAKES FOR THE EARLY TO MIDDLE PART OF THIS WEEK.
CERTAINLY A SOLID WIND ADVISORY FOR THE BUFFALO RIDGE AREA. AS THE UPPER LOW SPINS THROUGH THE AREA.
1053 AM CDT SUN OCT 11 2015 High pressure building into the region will continue to keep the skies sunny today. Mostly clear and dry conditions expected to continue today as the CWA will remain in between high pressure to the east and a developing trough in the western plains. to the lower 80s in the west. Still looking fairly quiet this week, with upper pattern transitioning toward a building ridge across the West Coast and a cooler northwest flow into the Midwest.
EXPECT MVFR TO IFR CONDITIONS TO CONTINUE THROUGH 15Z BEFORE THE LOW CLOUDS/FOG BEGINS TO BURN OFF AND LIFT WITH DIURNAL HEATING. VFR CONDITIONS WILL PREVAIL AFTER 15Z AS THE 500MB RIDGE ACROSS NORTHEAST MEXICO AND SOUTHWEST TEXAS PROVIDES SUBSIDENCE ACROSS THE CWA TODAY.
WARM AIR ADVECTION CONTINUES MOST OF DAY AHEAD OF FAST MOVING WAVE AND ASSOCIATED COLD FRONT. SHORT WAVE AND ASSOCIATED COLD FRONT WILL PUSH INTO REGION TONIGHT SO EVENING LIKELY TO BE BREEZY AND MILD AS WELL. SHORT TERM GUIDANCE APPEARS TO BE A LITTLE FASTER THAN EARLIER RUNS SO COULD SEE COLD FRONT ENTER FORECAST AREA SHORTLY AFTER MIDNIGHT. RELATIVELY QUIET NORTHWEST FLOW SHOULD PREVAIL AND MEAN UPPER TROUGH DEVELOPS ALONG EAST COAST.
Initially strong winds will be found just in back of a cold front across western Kansas of 20 to 30 mph, then as the ridge builds into western Kansas in the afternoon, the winds will gradually slow to 10 to 20 mph. Highs will be much cooler in back of the cold front with highs in the mid to upper 70s.
737 AM EDT SUN OCT 11 2015 HIGH PRESSURE OVER THE REGION WILL WEAKEN. A SERIES OF COLD FRONTS WILL SWEEP THROUGH THE GREAT LAKES REGION DURING THE EARLY TO MIDDLE PART OF THE WEEK. HIGH TEMPERATURES COULD BE TRICKY AS THE AMOUNT OF SUN WITH THE WARMER AIR COULD CAUSE TEMPERATURES TO SPIKE THIS AFTERNOON. THE MAV GUIDANCE IS ON THE HIGHER END COMPARED TO THE MET GUIDANCE. I WILL KEEP MOST LOCATIONS IN THE LOWER 70S BUT WOULD NOT BE SURPRISED TO SEE SOME LOCATIONS SLIGHTLY HIGHER. A SERIES OF COLD FRONTS WILL SWEEP ACROSS THE LOWER LAKES FOR THE EARLY TO MIDDLE PART OF THIS WEEK.
1013 AM EDT SUN OCT 11 2015 HIGH PRESSURE WILL PROVIDE FAIR SKIES AND DRY CONDITIONS THAT WILL CONTINUE INTO MONDAY EVENING.
ALSO COULD SEE SOME LOW CLOUDS OVER OUR EASTERN AL COUNTIES THIS MORNING FROM CLOUD COVER ADVECTING AROUND THE LOW IN GA.
1032 AM EDT SUN OCT 11 2015 HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH TONIGHT.
THIS SHOULD ALLOW FOR A NICE WARM UP TODAY WITH AFTERNOON READINGS EXPECTED TO BE IN THE MID 80S BY FROM CENTRAL TO WESTERN AREAS AND IN THE LOWER TO MID 80S ACROSS THE EAST. NORTHWESTERLY WINDS EXPECTED MONDAY BEHIND THE COLD FRONT TO PUSH THROUGH THE CWA TONIGHT. STRONG WINDS IN THE LOWER LEVELS WITH 35 TO 45 KTS FROM 925 TO 850MB.
THE HIGH PRESSURE SYSTEM SHOULD MOVE EAST OF THE REGION TODAY ALLOWING FOR RETURN SOUTHERLY LOW LEVEL FLOW TO SET UP. EVEN WARMER CONDITIONS ARE EXPECTED FOR MONDAY WITH HIGHS INTO THE MIDDLE 80S TO AROUND 90 DEGREES OVER THE MISSISSIPPI AND ARKANSAS DELTA COUNTIES.
HIGH PRESSURE IS EXPECTED TO HOLD ACROSS THE AREA INTO TONIGHT. A COLD FRONT IS EXPECTED TO MOVE THROUGH DURING THE DAY MONDAY. HIGH PRESSURE WILL BUILD BACK INTO THE AREA THROUGH THE MIDDLE OF THE WEEK. MODEL DATA SUGGEST A FAIRLY STRONG SHORT WAVE TROUGH WILL MOVE ACROSS THE GREAT LAKES ON MONDAY. WITH AN ATTENDANT SURFACE COLD FRONT MOVING THROUGH THE LOCAL AREA DURING THE DAY MONDAY. DEEP MOISTURE IS LACKING WITH THIS SYSTEM GIVEN RIDGING OVER THE GULF OF MEXICO.
HIGH TEMPS WILL BE BETWEEN 5-8 DEGREES WARMER THAN YESTERDAY. ADDITIONAL CLOUD COVER WILL ALSO BEGIN TO DEVELOP DURING THIS TIMEFRAME AS LOW AND MID LEVEL MOISTURE WORKS NWRD FROM THE COAST WITH INCREASING SOUTHERLY WINDS AHEAD OF AN APPROACHING COLD FRONT. THIS WILL BE SHORT-LIVED AS SRLY BNDRY LYR WINDS RETURN LATER TODAY AS SFC RIDGING SHIFTS E OF THE AREA. H850 RIDGING WILL BUILD E OVER THE REGION. THE UPPER TROUGH OVER THE PAC NW THIS MORNING WILL CONTINUE TO TRANSLATE E INTO THE NRN PLAINS THIS AFTERNOON. THE DEEPENING LOW SHOULD AMPLIFY THE ATTENDENT TROUGH SWD INTO THE MID MS VALLEY MONDAY AFTERNOON. HAVE CONTINUED TO LEAN ON THE DRIER SOLUTIONS AS FORCING ALOFT WILL BE WEAK GIVEN THE FACT THAT THE MAIN TROUGH WILL REMAIN WELL NE OF THE REGION.
948 AM EDT SUN OCT 11 2015 HIGH PRESSURE BUILDS SOUTH OF NEW ENGLAND TODAY AND ALLOWS FOR FAIR WEATHER THROUGH MONDAY ALONG WITH A WARMING TREND. WEAK LOW PRESSURE MOVING NORTHEASTWARD THROUGH THE GULF OF MAINE MAY BRING SHOWERS TO THE COASTAL PLAIN MONDAY NIGHT.
1012 AM CDT SUN OCT 11 2015 THE FORECAST IS GENERALLY ON TRACK WITH HIGH PRESSURE IN CONTROL OF ARKLAMISS WEATHER. RIDGING AT ALL LEVELS IS IN CONTROL OF OUR WEATHER IN THE NEAR TERM. LOOK FOR A WARMER OVERNIGHT FOR MOST AREAS(UPPER 50S WEST). THE COMBO OF THE LOW LEVEL FRONTAL FORCING AND SOME DECENT LIFT ALOFT FROM THE SE MOVING UPPER TROUGH.
1254 PM EDT SUN OCT 11 2015 HIGH PRESSURE SHIFTING EAST OFF THE NEW ENGLAND COAST WILL CONTINUE TO PROVIDE THE NORTH COUNTRY WITH DRY CONDITIONS THROUGH THE HOLIDAY WEEKEND.
645 AM CDT SUN OCT 11 2015 UPPER RIDGE ACROSS THE PLAINS FLATTENS TODAY AS A TROUGH MOVES THROUGH THE NORTHERN ROCKIES. THIS WILL HELP PUSH A COLD FRONT INTO THE REGION TONIGHT. VERY HOT TEMPS ARE EXPECTED TODAY AS A THERMAL RIDGE MOVES ACROSS THE AREA. MIXING AHEAD OF THE COLD FRONT SHOULD LEAD TO HIGHS IN THE UPPER 80S AND LOWER 90S. WHILE SURFACE DEWPOINTS AHEAD OF THE FRONT ARE IN THE LOWER AND MID 50S EARLY THIS MORNING. SUBSTANTIAL MIXING OF DRIER AIR TO THE WEST ASSOCIATED WITH A PREFRONTAL TROUGH WILL BRING DEWPOINTS BACK INTO THE 40S IN NORTHEAST NEBRASKA THIS AFTERNOON. THE COLD FRONT MOVES INTO THE AREA THIS EVENING. IT WILL BE COOLER MONDAY THAN SUNDAY. BUT STILL ABOVE NORMAL WITH HIGHS IN THE LOWER TO MID 70S.
907 AM EDT SUN OCT 11 2015 HIGH PRESSURE OVER THE REGION WILL WEAKEN. A SERIES OF COLD FRONTS WILL SWEEP THROUGH THE GREAT LAKES REGION DURING THE EARLY TO MIDDLE PART OF THE WEEK. REGIONAL SOUNDINGS SHOW VERY LIMITED MOISTURE IN THE LOW AND MID LEVELS ACROSS THE AREA THIS MORNING SO EXPECT LITTLE IN THE WAY OF CLOUD COVER EXCEPT SOME THIN HIGH CIRRUS. WILL SUPPORT TEMPERATURES ABOUT 10F WARMER THAN YESTERDAY. A SERIES OF COLD FRONTS WILL SWEEP ACROSS THE LOWER LAKES FOR THE EARLY TO MIDDLE PART OF THIS WEEK.
631 AM CDT SUN OCT 11 2015 COLD FRONT CONTINUES TO PUSH THROUGH CENTRAL MONTANA WHILE SOME HIGH CLOUDS CONTINUES TO STREAM AHEAD OF THE SYSTEM INTO PORTIONS OF NORTH DAKOTA. FAST MOVING AREA OF LOW PRESSURE WILL PROPAGATE ACROSS SOUTHERN CANADA TODAY/TONIGHT. THIS LOW WILL BRING A COLD FRONT THROUGH BY THIS AFTERNOON. AS THE LOW PUSHES FURTHER EAST SUNDAY EVENING. WILL KEEP THE HIGH WIND GOING OVER MUCH OF THE AFOREMENTIONED AREA THROUGH THE MORNING. A COOLER DAY IS EXPECTED IN THE WAKE OF THE DEPARTING FRONT WITH SEASONAL TEMPERATURES ON TAP.
912 AM EDT SUN OCT 11 2015 SATELLITE INTERROGATION REVEALS AN UPPER LOW SPINNING ALOFT OVER THE SOUTH CAROLINA COAST WITH A WEAK TROUGH EXTENDING ACROSS CENTRAL FLORIDA. A LARGE ANTICYCLONE ENGULFS THE MISSISSIPPI VALLEY AND THE EASTERN UNITED STATES. WHILE A TROUGH DIGS OVER THE INTERMOUNTAIN WEST. THE LARGE ANTICYCLONE MENTIONED ABOVE WILL MOVE NORTHEASTWARD THROUGH COLUMBUS DAY.
PBI AND BROWARD TERMINALS SHOULD TRANSITION TO NE WIND ON BACK SIDE OF COLD FRONT.
The modest ridge that has been prevailing across the Plains in recent days has allowed warm air to advect north over the past day with the help of a trough moving east along the US-Canadian border. The Canadian border trough will continue east over the next few days as it deepens, but of more importance for us will be the cold front it sends south though the Plains States today and tonight. Warm air advection in advance of the front, as well as ample sunshine, will ultimately result in the thermal ridge across the Plains leaning over into northwest and western Missouri today. Rest of the work week is expected to be dry with more above normal temperatures dominating the Plains as an amplified pattern develops across the CONUS with a ridge to our west and trough to our east.
738 AM EDT SUN OCT 11 2015 LOW PRESSURE WILL LINGER OFF THE SOUTHEAST COAST UNTIL MONDAY MORNING BEFORE LIFTING NORTHEAST.
LITTLE CHANGE TO THE FORECAST WITH WARMER AIR TO CONTINUE SPREADING ACROSS THE REGION TODAY INTO TONIGHT. A COLD FRONT WILL MOVE ACROSS THE REGION MONDAY MORNING. THE COOLER AIR WILL LAG THE FRONT BY A FEW HOURS SO HIGHS STILL EXPECTED TO REACH THE LOWER TO MID 70S BEFORE BEGINNING TO SLOWLY DROP IN THE AFTERNOON.
EXPECT WARM AND BREEZY CONDITIONS AS THE UPPER LEVEL RIDGE FLATTENS AS AN UPPER LEVEL TROUGH RACES ACROSS THE NORTHERN ROCKIES. UPPER RIDGE WILL CONTINUE TO FLATTEN OVER COLORADO AS UPPER TROF NOW OVER THE PACIFIC NORTHWEST RAPIDLY SWEEPS ACROSS NORTHERN ROCKIES TODAY. DESPITE THE TROF. AIRMASS WILL STILL REMAIN QUITE DRY ESPECIALLY AT THE LOW LEVELS. MAIN IMPACT WITH THE TROF WILL BE INCREASING GUSTY WEST TO NORTHWEST WINDS OVER MOUNTAINS AND LOCATIONS BORDERING WYOMING AND NEBRASKA.
AN UPPER LEVEL TROUGH OF LOW PRESSURE WILL MOVE ACROSS THE NORTHERN ROCKIES TODAY. WITH AN ASSOCIATED COLD FRONT SLIDING ACROSS NORTHERN UTAH THIS MORNING AND INTO CENTRAL UTAH THIS AFTERNOON.
1248 PM EDT SUN OCT 11 2015 HIGH PRESSURE SHIFTING EAST OFF THE NEW ENGLAND COAST WILL CONTINUE TO PROVIDE THE NORTH COUNTRY WITH DRY CONDITIONS THROUGH THE HOLIDAY WEEKEND.
Northeast winds high in the troposphere keeping cirrus in place over eastern Kansas, though water vapor shows winds veering to the west head of a strong upper level trough entering the Pacific Northwest. Guidance very similar in the warmer air upstream reaching into the local area overnight into the afternoon hours as the upper trough quickly pushes east into the Northern Plains.
802 AM MST SUN OCT 11 2015 A LOW PRESSURE SYSTEM ACROSS NORTHERN MEXICO WILL CONTINUE DRIFTING WESTWARD.
Breezy winds and VFR conditions this afternoon w/ cold front and breezy north winds passing during the day Monday. Clear skies and slightly veered low level flow are in place beneath noticeably warmer low level temps.
WITH THE WINDS WILL COME TEMPERATURES 15-20 DEGREES COOLER THAN YESTERDAY. A STRONG SHORT WAVE TROUGH WILL BE MOVING RAPIDLY EAST AWAY FROM THE AREA THIS MORNING. IT HAS ALREADY PUSHED A COLD FRONT THROUGH. THESE WINDS WILL BRING IN MUCH COOLER AIR THIS MORNING. HIGHS TODAY WILL BE AROUND 20 DEGREES COOLER THAN YESTERDAY. WEAK RIDGING WILL TAKE OVER AND BRING 4 TO 8 DEGREES OF WARMING MONDAY. SHOWERS WILL REMAIN IN THE FORECAST FOR THIS MORNING IN THE HIGHER TERRAIN OF THE NORTH.
HIGH PRESSURE FROM THE SOUTHERN PLAINS TO THE OHIO VALLEY EASES EAST. BUILDING INTO THE GULF AND NUDGING A COLD FRONT CURRENTLY ACROSS SOUTH-CENTRAL FL INTO SOUTHWEST FL BY EARLY THIS EVENING. A FRONT TRAVERSES SOUTH OVER THE COASTAL WATERS TODAY AS HIGH PRESSURE BUILDS INTO THE GULF.
A DRY AND STABLE ATMOSPHERE WAS FOUND BY THIS MORNING'S FLIGHT WITH SEVERAL INVERSIONS IN THE LOW LEVELS. TEMPERATURES ARE LOWER /COOLER/ THAN YESTERDAY FROM THE SURFACE TO ABOUT 8000 FEET AND WARMER BETWEEN 8000 AND 18000 FEET. UPPER LEVEL LOW OVER CAROLINA WILL MEANDER OVER THE SAME AREA THROUGH EARLY MONDAY BEFORE A WAVE IN THE NORTH STREAM LIFTS THE CAROLINA LOW NORTHEAST.
AHEAD OF A MUCH ANTICIPATED TROUGH/STRONG COLD FRONT OFF TO THE WEST. THE PEAK TEMP FROM YESTERDAY AFTERNOON AT KABR /93 DEGREES/ COMPARED TO THE LOW TEMP SO FAR THIS MORNING /47 DEGREES/ IS A MERE 46 DEGREE TEMPERATURE CHANGE. STRONG WARM AIR ADVECTION WILL RESUME AS THE TROUGH APPROACHES.
Clear skies and slightly veered low level flow are in place beneath noticeably warmer low level temps.
A VIGOROUS UPPER TROF MOVE EAST ACROSS THE NORTHERN ROCKIES TODAY. THE ASSOCIATED SURFACE TROF AND COLD FRONT WILL DROP SOUTHEAST ACROSS KANSAS TONIGHT INTO MONDAY MORNING WITH ONLY MODEST COOLING EXPECTED DUE TO THE MODIFICATION OF THE PACIFIC AIRMASS ADVECTING OVER THE AREA.
CHATTANOOGA AIRPORT, TN 74 53 80 56 / 0 0 10 30 KNOXVILLE MCGHEE TYSON AIRPORT, TN 72 50 77 55 / 0 0 0 30 OAK RIDGE, TN 73 50 75 54 / 0 0 10 30 TRI CITIES AIRPORT, TN 71 45 73 51 / 0 0 10 40.
Highs today are expected to be near yesterday's highs or a couple of degrees cooler.
The 12 UTC surface analysis showed an area of low pressure about 150 miles east of South Carolina with a cold front extending across the Bahamas and into Southern Florida. Wrap around moisture on the backside of the low pressure area was dropping southward across Southeastern Georgia. At upper levels, there was a cutoff low near the eastern NC/SC border with ridging building across the Western Gulf. Main forecast challenge for today is how long the low cloudiness across South Georgia will persist and possibly advance into N Florida. Surface heating already resulting in temperatures in the lower 70s will help scatter the cloud deck on the southern edge, where it has been mostly sunny this morning. Any remaining ceiling restrictions should gradually end late tonight as an upper low moves a little further east of the region.
511 AM PDT SUN OCT 11 2015 Winds will subside today as the cold front responsible for the gusty conditions moves into the Upper Plains states.
BUT KEPT THE WARMER MID 70 HIGHS ALONG THE WESTERN EDGES WHERE THE GREATER CLOUD BREAKS ARE EXPECTED. THE H5 UPPER LOW WILL WOBBLE ALONG THE SOUTH CAROLINA/GEORGIA COAST TODAY. AS THE NEXT COLD FRONT APPROACHES MONDAY AFTERNOON.
728 AM EDT SUN OCT 11 2015 DRY WEATHER AND WARM TEMPERATURES CAN BE EXPECTED ACROSS THE UPPER OHIO REGION UNTIL COLD FRONTAL ENCROACHMENT ON MONDAY NIGHT. RADIATIONAL COOLING WITH DECOUPLED BOUNDARY LAYER FLOW WILL BE HAMPERED TONIGHT BY A GENERALLY WARMER COLUMN/CONTINUED WARM ADVECTION REGIME IN ADVANCE OF DEEPENING NRN PLAINS LOW PRES. AS THE PRESSURE GRADIENT TIGHTENS AHEAD OF APPROACHING COLD FRONT. A COLD FRONT ASSOCIATED WITH LOW PRESSURE DIGGING TOWARDS THE JAMES BAY IS PROJECTED TO CROSS THE REGION MONDAY NIGHT.
927 AM MDT SUN OCT 11 2015 COLD FRONT IS MOVING INTO THE CWA SLIGHTLY LATER THAN EXPECTED. WEAK HIGH PRESSURE IS IN PLACE WITH WESTERLY BOUNDARY LAYER FLOW KEEPING TEMPERATURES VERY MILD. A STRONG COLD FRONT WILL CROSS THE AREA TODAY. BUT THE PRESSURE GRADIENT WILL REMAIN TIGHT ACROSS FAR NORTHWEST SD WHERE THE HIGH WIND WARNING WILL EXTEND INTO TONIGHT. MAXIMUM TEMPERATURES WILL BE A LITTLE TRICKY GIVEN THE TIMING OF THE COLD FRONT. TEMPS WILL REACH THE LOW 70S. QUICK MOVING UPPER TROF SHIFTS EAST WITH RIDGING BUILDING INTO THE AREA AGAIN. HIGH PRESSURE WILL REMAIN ACROSS WESTERN AREAS WITH A DECENT PRESSURE GRADIENT REMAINING ACROSS NORTHWESTERN SOUTH DAKOTA.
A WEAK UPPER LEVEL RIDGE WILL MOVE ACROSS WESTERN WASHINGTON TODAY. A COLD FRONT WILL MOVE SLOWLY SOUTHEAST ACROSS THE AREA MONDAY AND MONDAY NIGHT WITH SOME RAIN AND LOCALLY WINDY CONDITIONS.
HIGH PRESSURE WILL KEEP THINGS DRY THROUGH MONDAY.
THERE IS A WEAK RIDGE CENTERED OFF TO OUR SOUTHWEST AND SKIES WILL BE MOSTLY CLEAR TO PARTLY CLOUDY THIS AFTERNOON. THE RIDGE WILL ALLOW FOR ABOVE NORMAL TEMPERATURES WITH HIGHS TODAY IN THE LOWER TO MIDDLE 90S. A STRONG UPPER LEVEL LOW WILL MOVE THROUGH THE NORTHERN PLAINS AND GREAT LAKES REGION THIS EVENING AND OVERNIGHT. A SURFACE AND 850 MB LOW WILL BE SITUATED JUST SOUTH OF THE FRONT WHICH WILL PUT OUR AREA IN SOUTHWEST FLOW IN THE LOWER LEVELS.
A LOW PRESSURE SYSTEM ACROSS NORTHERN MEXICO WILL CONTINUE DRIFTING WESTWARD.
723 AM EDT SUN OCT 11 2015 HIGH PRESSURE WILL PROVIDE FAIR SKIES AND DRY CONDITIONS THAT WILL CONTINUE INTO MONDAY EVENING.
A RIDGE OF HIGH PRESSURE AT THE SURFACE HAS SETTLED INTO THE REGION THIS MORNING AND STRETCHES FROM THE LOWER MS VALLEY INTO NEW ENGLAND. ALOFT A RIDGE IS ALSO BUILDING INTO THE AREA BEHIND A SHORT WAVE THAT IS MOVING INTO THE NORTHERN GULF. THIS WILL ALLOW FOR A SLIGHTLY COOLER THAN NORMAL START TO TODAY WITH TEMPS WARMING INTO THE 80S THIS AFTERNOON UNDER MOSTLY SUNNY SKIES. THE RIDGE ALOFT WILL MOVE ACROSS THE AREA WHILE GRADUALLY FLATTENING.
1238 PM EDT SUN OCT 11 2015 HIGH PRESSURE BUILDS SOUTH OF NEW ENGLAND TODAY AND ALLOWS FOR FAIR WEATHER THROUGH MONDAY ALONG WITH A WARMING TREND. WEAK LOW PRESSURE MOVING NORTHEASTWARD THROUGH THE GULF OF MAINE MAY BRING SHOWERS TO THE COASTAL PLAIN MONDAY NIGHT.
1013 AM EDT SUN OCT 11 2015 LOW PRESSURE WILL LINGER OFF THE SOUTHEAST COAST THIS AFTERNOON INTO MONDAY MORNING BEFORE LIFTING NORTHEAST.
ADDITIONAL CLOUD COVER WILL ALSO BEGIN TO DEVELOP DURING THIS TIMEFRAME AS LOW AND MID LEVEL MOISTURE WORKS NWRD FROM THE COAST WITH INCREASING SOUTHERLY WINDS AHEAD OF AN APPROACHING COLD FRONT. THIS WILL BE SHORT-LIVED AS SRLY BNDRY LYR WINDS RETURN LATER TODAY AS SFC RIDGING SHIFTS E OF THE AREA. H850 RIDGING WILL BUILD E OVER THE REGION. THE UPPER TROUGH OVER THE PAC NW THIS MORNING WILL CONTINUE TO TRANSLATE E INTO THE NRN PLAINS THIS AFTERNOON. THE DEEPENING LOW SHOULD AMPLIFY THE ATTENDENT TROUGH SWD INTO THE MID MS VALLEY MONDAY AFTERNOON. HAVE CONTINUED TO LEAN ON THE DRIER SOLUTIONS AS FORCING ALOFT WILL BE WEAK GIVEN THE FACT THAT THE MAIN TROUGH WILL REMAIN WELL NE OF THE REGION.
WITH SOME HIGHER GUSTS OVR THE HIGHER TERRAIN OF NRN AR.
THE H5 UPPER LOW WILL WOBBLE ALONG THE SOUTH CAROLINA/GEORGIA COAST TODAY. AS THE NEXT COLD FRONT APPROACHES MONDAY AFTERNOON.
COOLER WEATHER CONDITIONS TO THE REGION LATER IN THE WEEK.
411 AM PDT SUN OCT 11 2015 HIGH PRESSURE ALOFT WILL CONTINUE HOT DRY WEATHER TODAY. A LOW PRESSURE SYSTEM TO THE SOUTHWEST WILL MOVE SLOWLY INLAND ACROSS CENTRAL AND SOUTHERN CALIFORNIA THE LATTER PART OF THE WEEK. WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO HIGH PRESSURE ALOFT WILL CONTINUE HOT WEATHER FOR INLAND AREAS TODAY WITH WELL ABOVE AVERAGE HIGH TEMPERATURES.