Aikyam-Lab/Synoptic-Bench huggingface dataset:
1001 AM EDT SUN JUN 21 2015 LOW PRESSURE WILL CROSS THE REGION TODAY AND WILL MOVE EAST INTO THE MARITIMES TONIGHT. HIGH PRESSURE WILL BUILD IN FROM THE WEST ON MONDAY.
1113 AM 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.
THE MARINE LAYER WILL EXTEND COOLER COASTAL AIR. THE DOMINANT UPPER LEVEL HIGH PRESSURE CENTER WILL CONTINUE TO DRIFT SLOWLY EWD THROUGH THIS WEEK. MAINTAINING A RIDGE AXIS ORIENTED E- W. THE MEDIUM RANGE MODELS CONTINUE TO SHOW THE ADVECTION OF MONSOONAL MOISTURE INTO SOCAL AS THE UPPER HIGH REPOSITIONS ITSELF AND THE RIDGE AXIS BECOMES ORIENTED N-S.
SHOWERS AND THUNDERSTORMS WILL BE EXITING TO THE EAST MONDAY EVENING AS HIGH PRESSURE AT THE SURFACE MOVES IN FROM THE WEST AND HEIGHTS ALOFT RISE WITH A WEAK BROAD UPPER RIDGE.
1020 AM CDT SUN JUN 21 2015 SCATTERED SHOWERS AND A FEW THUNDERSTORMS HAVE DEVELOPED IN THE PAST FEW HOURS ALONG AND EAST OF THE WEAK TROUGH AXIS. MID LEVEL TROUGH AXIS STRETCHES FROM NORTH TEXAS. THE TROUGH AXIS WILL CONTINUE TO INFLUENCE RAIN CHANCES TODAY. CLOSER TO THE DEEPER MOISTURE AND FORCING FROM THE TROUGH AXIS.
1150 AM EDT SUN JUN 21 2015 LOW PRESSURE WILL CROSS THE REGION TODAY AND WILL MOVE EAST INTO THE MARITIMES TONIGHT. HIGH PRESSURE WILL BUILD IN FROM THE WEST ON MONDAY.
UPPER RIDGE CONTINUES TO BUILD INTO NORTHEAST OKLAHOMA/NORTHWEST ARKANSAS AND WILL LIKELY SUPPRESS CONVECTION FURTHER NORTH ACROSS THESE AREAS.
ONE UPPER LEVEL RIDGE IS OVER THE SW US WHERE SOME LOCATIONS COULD SEE OVER 100 DEGREES TODAY! ANOTHER IS STARTING TO BUILD INTO THE SE US WHERE OUR TEMPS WILL GET WARMER AS WE HEAD INTO THE WORK WEEK. A DISTURBANCE IS MOVING THROUGH THE OKLATEX AREA BETWEEN THE RIDGES.
1115 AM CDT SUN JUN 21 2015 THE MORNING WATER VAPOR IMAGERY INDICATES A WEAK UPPER LOW STILL SPINNING ACROSS NE TX NEAR THE RED RIVER IN VC OF GYI/DUA. WITH THE COOLER TOPS HAVING MIGRATED FARTHER NW TO NEAR DUA. AS A WEAK ATTENDANT TROUGH AXIS MAY NUDGE E DURING THE AFTERNOON.
HOT AND STICKY OUT THERE THIS MORNING WITH TEMPERATURES ALREADY IN THE MID TO UPPER 80S AND DEWPOINTS IN THE LOW TO MID 70S. GIVEN THE HIGH PW VALUES AND THE FACT THAT THE UPPER-LEVEL RIDGE IS NOT PARTICULARLY STRONG YET. MICROBURST PARAMETERS APPEAR FAVORABLE THIS AFTERNOON GIVEN THE HIGH PW VALUES AND DCAPE IN EXCESS OF 1000 J/KG. ONLY VERY ISOLATED RAIN CHANCES FOR TODAY DUE TO HEATING AND OLD BOUNDARIES AS WEAK RIDGING AT THE SURFACE AND ALOFT WILL BE IN CONTROL AND WILL FORGO ANY MENTION IN THE TERMINALS AT THIS TIME. WEST/NORTHWEST WINDS 6-10 KTS AROUND THE RIDGE TODAY.
415 AM PDT SUN JUN 21 2015 COOLER TODAY AND MONDAY WITH DAYTIME HIGHS SLIGHTLY BELOW NORMAL.
THE MID/UPPER-LEVEL RIDGE REMAINS IN PLACE BUT LOOKS TO WEAKEN A BIT WHILE AT THE SURFACE. HIGH PRESSURE WILL REMAIN ACROSS THE REGION THROUGH THE NEXT SEVERAL DAYS.
1057 AM MDT SUN JUN 21 2015 HIGH PRESSURE WILL BUILD OVER NEW MEXICO TODAY. NORTH OF THE HIGH. ALSO THE THERMAL RIDGE WILL BEGINS TO SHIFT A LITTLE EAST OF THE AREA SHAVING OFF A FEW DEGREES FROM AFTERNOON HIGH TEMPERATURES.
The low ceilings will clear up around 16z. High pressure over the desert southwest will migrate east into the Central Plains by the middle of the week. An inverted upper trough currently over east-central Texas will get caught under the high and pushed westward increasing rain chances mainly west of the Pecos River. Lower heights accompanying the trough will allow temps to drop but only slightly. Later in the week the upper high shifts back to the west and amplifies over the Rockies increasing temperatures back to near normal.
HIGH PRESSURE OVER THE AREA WILL BREAK DOWN TODAY ALLOWING MOISTURE TO SPREAD INTO SOUTHWEST UTAH THIS AFTERNOON. DOMINANT RIDGE THAT HAS BEEN IN PLACE OVER UTAH FOR PAST WEEK WILL SLOWLY MIGRATE EASTWARD TODAY AS A WEAK DISTURBANCE OVER NORTHERN CALIFORNIA MOVES EASTWARD.
VFR CONDITIONS WILL PREVAIL THROUGH THE PERIOD AS HIGH PRESSURE REMAINS CENTERED OVER THE STATE. WHILE THE DEEP UPPER TROUGH OVER THE EASTERN U.
624 AM CDT SUN SEP 13 2015 SOUTHERLY FLOW PREVAILS THE NEXT SEVERAL DAYS WITH WARMER TEMPERATURES AND SPORADIC CHANCES FOR RAIN. HIGH PRESSURE REMAINS TO OUR EAST TODAY. MIXING TO ABOUT 900 MB COMBINED WITH WARMER TEMPS ALOFT SHOULD YIELD HIGHS IN THE MID 70S TO AROUND 80. SLIGHTLY WARMER TEMPS ALOFT SHOULD RESULT IN ABOVE NORMAL HIGHS IN THE MID 80S.
FLOW ALOFT OVER NM BEGINNING TO TRANSITION TO SOUTHWESTERLY AS UPPER HIGH WEAKENS AND SHIFTS SOUTH AND A WEAK UPPER LOW SLOWLY COMES ASHORE NEAR SAN FRANCISCO. NAM ALSO INDICATING THAT THE FAR NE PLAINS MAY SEE A STORM OR TWO AT THE CENTER OF A DEVELOPING SFC LEE TROUGH/LOW.
911 AM EDT SUN SEP 13 2015 AN UPPER TROUGH WILL MAINTAIN COOL AND UNSETTLED WEATHER TODAY. THE AREA WILL SEE RELATIVELY COOL TEMPERATURES TODAY AND SCATTEREDSHOWERS AS AN UPPER LEVEL TROUGH LIFTS NORTHEAST ACROSS THE REGION. MID/UPPER RIDGE IS PROGGED TO AMPLIFY OVER THE EASTERN CONUS AS TROUGHING DEVELOPS OVER THE WEST COAST.
1155 AM CDT SUN SEP 13 2015 THE LATEST SFC ANALYSIS WAS INDICATING A LARGE RIDGE OF HIGH PRESSURE CONTINUING TO REIGN ACRS MUCH OF THE MID CONUS INCLUDING THE LOCAL CWA. THE DEEP L/W TROF ACRS THE GRT LKS AND OH RVR VALLEY SHOWING SIGNS OF MIGRATING EASTWARD WHICH WILL ALLOW THE UPPER RIDGE AXIS CURRENTLY ACRS THE NORTHERN PLAINS INTO THE NORTHWESTERN GRT LKS TO NUDGE IT/S WAY EAST-SOUTHEASTWARD ACRS THE REGION TODAY. THE RIDGE COMPLEXES THROUGH THE COLUMN WILL PROVIDE FAIR WX TODAY. MOST OF THE CWA WILL EXPERIENCE LATE AFTERNOON HIGH TEMPS IN THE LOWER 70S. ALLOWING AMBIENT TEMPS TO COOL DOWN INTO THE LOWER 50S IN MANY LOCATIONS TAKING INTO ACCOUNT STILL DRY SFC DPT FIELDS.
929 AM PDT SUN SEP 13 2015 DRY TODAY WITH SLIGHTLY COOLER WEATHER.
511 AM PDT SUN SEP 13 2015 A dry cold front will bring breezy conditions along with cooler temperatures today. A dry cold front will usher in windy conditions and cooler temperatures but relative humidity will not improve much.
HIGH PRESSURE IS SETTLING IN SO EXPECTING MOSTLY SUNNY SKIES TODAY. SHOULD REMAIN IN THE LOW TO MID 70S TODAY.
605 AM CDT SUN SEP 13 2015 UPPER RIDGE BUILDING IN FROM THE WEST WITH TROUGH OVER THE GREAT LAKES MOVING EAST. CIRRUS HAVE BEEN ASSOCIATED WITH THE INCOMING UPPER RIDGE.
/ISSUED 348 AM EDT SUN SEP 13 2015/ DEEP UPR TROUGH CONTINUES TO INFLUENCE MUCH OF THE CONUS EAST OF THE MISSISSIPPI RIVER. BRINGING MUCH COOLER AND DRIER AIR TO NEARLY ALL OF NORTH/CENTRAL GA. UPR TROUGH AXIS WILL PUSH EAST OF THE STATE TODAY. THE CENTER OF HIGH PRESSURE WILL SETTLE OVER THE SRN APPALACHIANS WITH UNSEASONABLY COOL TEMPERATURES BOTTOMING OUT IN THE 40S AND LWR 50S BY DAYBREAK MONDAY. A WEAK UPR RIDGE WILL APPROACH THE AREA AS THE LOW LVL FLOW SHIFTS AROUND TO THE EAST-SOUTHEAST. THIS WILL ALLOW FOR SLIGHTLY WARMER TEMPS/INCREASE IN HUMIDITY BUT ABUNDANT SUNSHINE WILL CONTINUE.
THE JET STREAM IS BEGINNING TO SAG SOUTHWARD AS AN UPPER LEVEL TROUGH DEVELOPS OVER WESTERN CANADA. THIS WILL RESULT IN COOLER TEMPERATURES TODAY AND BREEZY WESTERLY WINDS STIRRING UP SOME PATCH BLOWING DUST THIS AFTERNOON AND EVENING. A DRY COLD FRONT WILL PRODUCE BREEZY WINDS AND SOME PATCHY BLOWING DUST ACROSS PORTIONS OF THE LOWER COLUMBIA BASIN AND FOOTHILLS OF THE BLUE MOUNTAINS. BREEZY WINDS IN THE COLUMBIA RIVER GORGE WILL INCREASE THIS AFTERNOON AND SPREAD INTO THE LOWER COLUMBIA BASIN FWZ641 AND THE CENTRAL MOUNTAINS OF OREGON FWZ640.
1236 PM EDT SUN SEP 13 2015 LOW PRESSURE WILL APPROACH FROM THE SOUTHWEST TODAY AND SLOWLY CROSSING THE REGION TONIGHT INTO MONDAY. LOW PRESSURE WILL DRIFT NORTHWARD INTO THE EASTERN GREAT LAKES DURING THE DAY TODAY. MAIN CHALLENGE THIS TERM WILL BE THE UPPER LOW MOVING ACROSS THE REGION W/RAIN AND POSSIBLE CONVECTION. THE UPPER LOW SWINGS TO THE E MONDAY EVENING W/SHOWERS AND THEN RAIN ACTIVITY SHOULD COME TO AN END AFTER MIDNIGHT AS THE BEST MID LEVEL FORCING PUSHES AWAY FROM THE REGION.
813 AM EDT SUN SEP 13 2015 A COLD FRONT CONTINUES TO NUDGE SOUTHWARD INTO CENTRAL FLORIDA.
1133 AM CDT SUN SEP 13 2015 UPDATED AVIATION PORTION FOR 18Z TAF ISSUANCE WARMER TODAY. THE UPR FLOW ACRS NOAM IS TRANSITIONING TO ONE WITH A TROF ALONG THE WEST COAST FLANKED BY RIDGES NR 160W AND OVER ERN NOAM. TEMPS YDA AFTN WERE A BIT WARMER THAN EXPECTED. TRENDED TOWARD THE COOLER GUIDANCE PRODUCTS.
/ISSUED 439 AM CDT SUN SEP 13 2015/ DEEP TROF NOTED OVER THE ERN CONUS ON RECENT UA ANALYSIS WITH MUCH DRIER AIR SPILLING ACRS THE REGION ON NWLY FLOW ALOFT PER WV IMAGERY. 1020 MB HIGH OVER THE MIDWEST WAS RIDGING SOUTH OVER THE NW GULF COAST WITH LT NLY WINDS ACRS THE AREA. MILD AFTNS WITH HIGHS IN THE LOWER TO MIDDLE 80S AND COOL NIGHTS WITH LOWS IN THE MIDDLE 50S TO NR 60 CAN BE EXPECTED TODAY INTO MONDAY.
FLATTENED UPPER LEVEL RIDGE WAS OVER THE AREA THIS MORNING WITH A FAIRLY STRONG ZONAL UPPER JET MOVING INTO CENTRAL CANADA. RIDGE MOVES TO THE EASTERN CONUS BY 84 HOURS. COUPLE OF SHORT WAVES OVER THE GULF OF AK CARVE OUT AN UPPER TROUGH OVER THE WESTERN US THIS PERIOD WHICH BUILD RIDGE OVER THE EASTERN CONUS.
1254 PM EDT SUN SEP 13 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW DRY AND GRADUALLY WARMER CONDITIONS CAN BE EXPECTED ACROSS CENTRAL INDIANA THROUGH MUCH OF THE WEEK THANKS TO HIGH PRESSURE. A COLD FRONT WILL BRING CHANCES FOR RAIN LATE IN THE WEEK AND INTO THE WEEKEND. PREVIOUS DISCUSSION AN UPPER TROUGH WILL CONTINUE TO EXIT THE AREA TODAY.
THE JET STREAM IS BEGINNING TO SAG SOUTHWARD AS AN UPPER LEVEL TROUGH DEVELOPS OVER WESTERN CANADA. THIS WILL RESULT IN COOLER TEMPERATURES TODAY AND BREEZY WESTERLY WINDS STIRRING UP SOME PATCH BLOWING DUST THIS AFTERNOON AND EVENING. BREEZY WINDS IN THE COLUMBIA RIVER GORGE WILL INCREASE THIS AFTERNOON AND SPREAD INTO THE LOWER COLUMBIA BASIN FWZ641 AND THE CENTRAL MOUNTAINS OF OREGON FWZ640.
VIS SATELLITE IMAGERY THIS MORNING SHOWING ABUNDANT MID LEVEL CLOUD COVER ON THE BACKSIDE OF A DEPARTING LONGWAVE TROUGH ACROSS THE APPALACHIANS INTO NEW ENGLAND. THE TROUGH OF LOW PRESSURE THAT MOVED THROUGH THE REGION YESTERDAY HAS BEEN REPLACED WITH RIDGE OF HIGH PRESSURE WATER VAPOR SHOWS DRIER AIR MOVING FROM THE NORTHWEST TO SOUTHEAST.
UPPER TROUGH PULLING OUT TODAY. CHATTANOOGA AIRPORT, TN 73 51 80 55 / 0 0 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 69 48 76 52 / 0 0 0 0 OAK RIDGE, TN 70 48 76 52 / 0 0 0 0 TRI CITIES AIRPORT, TN 66 44 74 47 / 10 0 0 0.
CANNOT ASK FOR A MUCH PRETTIER DAY THAN TODAY WITH A RIDGE OF HIGH PRESSURE CENTERED OVER THE MISSISSIPPI RIVER VALLEY INTO THE DEEP SOUTH THAT IS IN CONTROL OF THE WEATHER TODAY.
THIS LOW LEVEL WARM ADVECTION WILL INCREASE THE INSTABILITY FOR AREAS JUST TO THE SOUTHWEST OF THE FORECAST AREA BY LATE THIS AFTERNOON INTO THIS EVENING. LOW LEVEL MOISTURE AND INSTABILITY WILL BE ENOUGH FOR A POSSIBLE SHOWER AND THUNDERSTORM CHANCE ACROSS NW KANSAS ALONG A LEE TROUGH. A WARMER ELEVATED MIXED LAYER ON WED AFTERNOON. THE LEE TROUGH OVER NW KS WILL VENTURE FURTHER EAST INTO THE FORECAST AREA FOR THIS TIME FRAME. BREEZY SOUTHERLY WINDS ARE EXPECTED TO DEVELOP ACROSS THE AREA THIS AFTERNOON WITH GUSTS INTO THE 20-25 KNOT RANGE AS THE LEE TROUGH DEEPENS ACROSS THE CENTRAL HIGH PLAINS.
THE COLD FRONT IS NOW DRAPED ACROSS THE NATURE COAST AND CONTINUES TO MOVE SOUTHEAST. TEMPERATURES WILL BE A FEW DEGREES COOLER THAN NORMAL BUT WILL STILL FEEL LIKE SUMMER TIME. A COLD FRONT IS MAKING ITS WAY THROUGH THE COASTAL WATERS AND WILL PRODUCE SCATTERED TO NUMEROUS SHOWERS AND STORMS THROUGH SUNDAY. HIGH PRESSURE WILL BUILD OVER THE MID ATLANTIC COAST MID WEEK WITH TIGHTENING GRADIENT OVER THE WATERS WHICH WILL INCREASE WINDS TO NEAR EXERCISE CAUTION LEVELS.
A WEAK UPPER TROUGH WILL SHIFT EASTWARD ACROSS E CO AND NE NM TODAY. FLOW ALOFT OVER NM BEGINNING TO TRANSITION TO SOUTHWESTERLY AS UPPER HIGH WEAKENS AND SHIFTS SOUTH AND A WEAK UPPER LOW SLOWLY COMES ASHORE NEAR SAN FRANCISCO. NAM ALSO INDICATING THAT THE FAR NE PLAINS MAY SEE A STORM OR TWO AT THE CENTER OF A DEVELOPING SFC LEE TROUGH/LOW.
ESPECIALLY IN THE HIGHER TERRAIN WITH A TIGHTER PRESSURE GRADIENT TO THE EAST. JMS /ISSUED 619 AM CDT SUN SEP 13 2015/ HIGH PRESSURE BUILDING INTO THE REGION WILL ALLOW FOR VFR CONDITIONS THROUGH THE TAF PERIOD.
/ISSUED 343 AM CDT SUN SEP 13 2015/ COOLER THAN NORMAL TEMPS AND LOW DAYTIME HUMIDITY TO PREVAIL OVER THE MIDSOUTH TODAY AND MONDAY.
734 AM EDT SUN SEP 13 2015 AN UPPER LEVEL TROUGH OVER THE AREA WILL LIFT NORTHEAST OUT OF THE AREA BY MONDAY AS HIGH PRESSURE SPREADS INTO THE AREA FROM THE SOUTH.
HIGHS A BIT WARMER INTO THE MIDDLE 60S MOST AREAS. HIGH PRESSURE CENTERED OVER MIZZOU EXTENDS RIDGING NNE-WARD INTO EASTERN WI. THE LAST VESTIGES OF LOW-LEVEL CYCLONIC FLOW EAST OF THE RIDGE IS SUPPORTING SOME STRATOCU IN EASTERN UPPER AND NE LOWER MI. THE RIDGE AXIS WILL SHIFT OVER LOWER MI TODAY.
852 AM EDT SUN SEP 13 2015 UPPER LOW SLIDES EAST TODAY. HIGH PRESSURE FOR MUCH OF NEXT WORK WEEK. 5H TROF AXIS SHIFTS TO THE EAST.
EVEN IN THE LOW LEVELS. THE VIEW FROM SPACE SHOWS AN IMMENSE AREA OF HIGH PRESSURE SPANNING THE MISSISSIPPI VALLEY FROM THE GREAT LAKES TO THE NORTHERN GULF OF MEXICO. AND WEAKENING TROUGH IS MEANDERING ACROSS NORTH CENTRAL FLORIDA TO THE WESTERN GULF OF MEXICO. THE TROUGH WILL REMAIN OVER CENTRAL FLORIDA AND WASH OUT AS THE RIDGE OVER THE MISSISSIPPI VALLEY SLIDES TO THE EAST. WEAKNESS IN THE PRESSURE GRADIENT WILL KEEP WINDS GENTLE THROUGH EARLY MONDAY WHILE THE MOVEMENT OF THE RIDGE TURNS WINDS MORE TO THE NORTH AND NORTHEAST MONDAY AFTERNOON.
BUT OTHERWISE MOST CONVECTIVE DEVELOPMENT HOLD OFF UNTIL MID-LATE AFTERNOON WHEN COLD FRONT ACROSS CENTRAL FL SAGS FURTHER SOUTH.
AN UPPER LEVEL TROUGH DEEPENS AND MOVES ONSHORE MONDAY WITH INCREASING SOUTHWESTERLY FLOW AHEAD OF IT IN THE RIGHT ENTRANCE REGION OF A +80KT JET. COOLER AIR SPILLING SOUTHWARD ALONG THE COAST WILL CAUSE WINDS TO CONTINUE TO INCREASE INTO THIS EVENING, REACHING GALE FORCE SOUTH OF CAPE BLANCO AND RESULTING IN ELEVATED WINDS AND SEAS FOR ALL AREAS THROUGH AT LEAST MONDAY MORNING. SOME SHOWERS ARE EXPECTED ON MONDAY IN THE NORTHERN WATERS AS WEAK HIGH PRESSURE ATTEMPTS TO NUDGE IN FROM THE SOUTH.
1109 AM CDT SUN SEP 13 2015 HIGH PRESSURE CONTINUES OVER THE AREA. VFR CONDITIONS WILL PREVAIL THROUGH THE PERIOD AS HIGH PRESSURE REMAINS CENTERED OVER THE STATE. WHILE THE DEEP UPPER TROUGH OVER THE EASTERN U.
1058 AM CDT SUN SEP 13 2015 UPPER RIDGE BUILDING IN FROM THE WEST WITH TROUGH OVER THE GREAT LAKES MOVING EAST. CIRRUS HAVE BEEN ASSOCIATED WITH THE INCOMING UPPER RIDGE.
CANADIAN HIGH PRESSURE WILL FOLLOW AND BUILD INTO THE REGION THROUGH MID-WEEK. STRONG VORT CENTER ROUNDING THE BASE OF THE UPPER LEVEL TROUGH OVER CENTRAL NC MAY CAUSE A SCATTERED CU FIELD TO DEVELOP IN VICINITY OF THE VIRGINIA BORDER COUNTIES. MAX TEMPS THIS AFTERNOON STILL ON TARGET FOR THE LOW-MID 70S NW TO THE MID-UPPER 70S SE. BENEATH STRONG HEIGHT RISES ALOFT BEHIND THE LIFTING UPPER TROUGH.
AN UPPER LEVEL TROUGH DEEPENS AND MOVES ONSHORE MONDAY WITH INCREASING SOUTHWESTERLY FLOW AHEAD OF IT IN THE RIGHT ENTRANCE REGION OF A +80KT JET.
1013 AM EDT SUN SEP 13 2015 LOW PRESSURE WILL APPROACH FROM THE SOUTHWEST TODAY AND SLOWLY CROSSING THE REGION TONIGHT INTO MONDAY. LOW PRESSURE WILL DRIFT NORTHWARD INTO THE EASTERN GREAT LAKES DURING THE DAY TODAY. MAIN CHALLENGE THIS TERM WILL BE THE UPPER LOW MOVING ACROSS THE REGION W/RAIN AND POSSIBLE CONVECTION. THE UPPER LOW SWINGS TO THE E MONDAY EVENING W/SHOWERS AND THEN RAIN ACTIVITY SHOULD COME TO AN END AFTER MIDNIGHT AS THE BEST MID LEVEL FORCING PUSHES AWAY FROM THE REGION.
DRY AND GRADUALLY WARMER CONDITIONS CAN BE EXPECTED ACROSS CENTRAL INDIANA THROUGH MUCH OF THE WEEK THANKS TO HIGH PRESSURE. A COLD FRONT WILL BRING CHANCES FOR RAIN LATE IN THE WEEK AND INTO THE WEEKEND. PREVIOUS DISCUSSION AN UPPER TROUGH WILL CONTINUE TO EXIT THE AREA TODAY.
AS HIGH PRESSURE CONTINUES TO SLIDE SOUTHEAST AWAY FROM THE REGION. OR INTO THE LOWER 70S.
Cloud cover and any sprinkles are due to a weak low pressure system straddling the Central/Northern CA coastline today coupled with remnant moisture from former Hurricane Linda.
THIS COMBINED WITH LOW LEVEL ONSHORE FLOW WILL RESULT IN CLOUDIER AND COOLER WEATHER TODAY. A LOW PRESSURE SYSTEM WILL MOVE ACROSS THE AREA ON MONDAY.
643 AM CDT SUN SEP 13 2015 THE LATEST SFC ANALYSIS WAS INDICATING A LARGE RIDGE OF HIGH PRESSURE CONTINUING TO REIGN ACRS MUCH OF THE MID CONUS INCLUDING THE LOCAL CWA. THE DEEP L/W TROF ACRS THE GRT LKS AND OH RVR VALLEY SHOWING SIGNS OF MIGRATING EASTWARD WHICH WILL ALLOW THE UPPER RIDGE AXIS CURRENTLY ACRS THE NORTHERN PLAINS INTO THE NORTHWESTERN GRT LKS TO NUDGE IT/S WAY EAST-SOUTHEASTWARD ACRS THE REGION TODAY. THE RIDGE COMPLEXES THROUGH THE COLUMN WILL PROVIDE FAIR WX TODAY. MOST OF THE CWA WILL EXPERIENCE LATE AFTERNOON HIGH TEMPS IN THE LOWER 70S. ALLOWING AMBIENT TEMPS TO COOL DOWN INTO THE LOWER 50S IN MANY LOCATIONS TAKING INTO ACCOUNT STILL DRY SFC DPT FIELDS.
1251 PM EDT SUN SEP 13 2015 LOW PRESSURE WILL APPROACH FROM THE SOUTHWEST TODAY AND SLOWLY CROSS THE REGION TONIGHT INTO MONDAY. LOW PRESSURE WILL DRIFT NORTHWARD INTO THE EASTERN GREAT LAKES DURING THE DAY TODAY. MAIN CHALLENGE THIS TERM WILL BE THE UPPER LOW MOVING ACROSS THE REGION W/RAIN AND POSSIBLE CONVECTION. THE UPPER LOW SWINGS TO THE E MONDAY EVENING W/SHOWERS AND THEN RAIN ACTIVITY SHOULD COME TO AN END AFTER MIDNIGHT AS THE BEST MID LEVEL FORCING PUSHES AWAY FROM THE REGION.
1026 AM EDT SUN SEP 13 2015 AN UPPER LEVEL TROUGH OVER THE AREA WILL LIFT NORTHEAST OUT OF THE AREA BY MONDAY AS HIGH PRESSURE SPREADS INTO THE AREA FROM THE SOUTH.
COLD FRONT CONTINUES TO MOVE SLOWLY DOWN THE FL PENINSULA THIS MORNING. WARMER TEMPS ALOFT AND WEAKER MID LEVEL LAPSE RATES. BUT OTHERWISE MOST CONVECTIVE DEVELOPMENT HOLD OFF UNTIL MID-LATE AFTERNOON WHEN COLD FRONT ACROSS CENTRAL FL SAGS FURTHER SOUTH.
VIS SATELLITE IMAGERY THIS MORNING SHOWING ABUNDANT MID LEVEL CLOUD COVER ON THE BACKSIDE OF A DEPARTING LONGWAVE TROUGH ACROSS THE APPALACHIANS INTO NEW ENGLAND.
1055 AM MDT SUN SEP 13 2015 NOTICED THAT SOME ZONES WILL REACH RECORD OR NEAR RECORD HIGH TEMPERATURES TODAY AS THE RIDGE AXIS ALOFT MOVES OVERHEAD. A WEAK UPPER TROUGH WILL SHIFT EASTWARD ACROSS E CO AND NE NM TODAY. FLOW ALOFT OVER NM BEGINNING TO TRANSITION TO SOUTHWESTERLY AS UPPER HIGH WEAKENS AND SHIFTS SOUTH AND A WEAK UPPER LOW SLOWLY COMES ASHORE NEAR SAN FRANCISCO. NAM ALSO INDICATING THAT THE FAR NE PLAINS MAY SEE A STORM OR TWO AT THE CENTER OF A DEVELOPING SFC LEE TROUGH/LOW.
BREEZY CONDITIONS THIS AFTERNOON WITH SLIGHTLY COOLER TEMPERATURES FOR THIS AFTERNOON. A STRONG UPPER LEVEL TROUGH TURNING OUT FLOW FROM WNW TO SW OVER THE NEXT 36 HOURS.
438 AM PDT SUN SEP 13 2015 DRYING WILL CONTINUE TODAY WITH HIGH TEMPERATURES A FEW DEGREES COOLER IN MOST AREAS EXCEPT FOR THE LOWER DESERTS.
TEMPERATURES WILL BE WARMER THAN AVERAGE THE NEXT COUPLE OF DAYS DUE IN PART TO THE GOOD MIXING AND ALSO TO ALMOST FLAT FLOW ALOFT. COOLER TEMPS WILL ACCOMPANY THE TROUGH AS WILL A SLIGHT CHANCE FOR SOME LIGHT SNOW ACROSS THE EAST.
725 PM EST THU FEB 18 2016 HIGH PRESSURE WILL BE NUDGED OFF THE EAST COAST BY FRIDAY MORNING ALLOWING A WARM FRONT TO LIFT NORTHWARD ACROSS THE REGION. LOW PRESSURE WILL MOVE ACROSS ONTARIO ON FRIDAY WITH AN OCCLUDED FRONT CROSSING NORTHERN OHIO AND NW PA BY EVENING.
STRONG HIGH PRESSURE IS CONTINUING TO BUILD IN NORTH OF FLORIDA. KTBW 00Z SOUNDING AND REGIONAL WATER VAPOR SATELLITE IMAGERY ARE SHOWING THAT THIS HIGH PRESSURE IS MAINTAINING A VERY DRY AIRMASS. WITH MOSTLY SUNNY SKIES AND HIGHS IN THE LOW TO MID 70S. HIGH PRESSURE SETTING UP NORTH OF FLORIDA IS FUELING BREEZY EASTERLY WINDS OVER THE COASTAL WATERS THIS EVENING.
THE UPPER LEVEL TROUGH WILL CONTINUE TO BRING SHOWERY AND COOL TONIGHT. ANOTHER COLD FRONT WILL BRING GUSTY WINDS AND A PERIOD OF HEAVY RAIN FRIDAY MORNING.
1053 PM EST THU FEB 18 2016 HIGH PRESSURE WILL MOVE EAST OF THE REGION OVERNIGHT.
ANTICIPATING WARMER LOWS IN SOUTHEAST KS WHERE WINDS/DEWPOINTS WILL BE HIGHER. RIDGE AXIS WILL DRIFT ACROSS THE AREA DURING THE DAY WITH NORTH TO NORTHWEST WINDS DECREASING AND BACKING THROUGHOUT THE DAY. WHICH WITH LESS WIND MAY FEEL AS WARM OR WARMER THAN TODAY. IF WETTER MODELS VERIFY TEMPERATURES WILL LIKELY BE 5-10 DEGREES COOLER THAN FORECAST IN WET/CLOUDY AREAS. BUT THINK NORTHWEST SECTIONS WITH GOOD INSOLATION COULD BE 5+ DEGREES WARMER. FRONT AND THEN RIDGE BUILDS INTO THE AREA ON SUN. SYNOTIC PATTERN VERIFICATION WOULD SUGGEST COOLER THAN INITIALIZATION HIGHS THROUGHOUT THIS PERIOD. BUT WESTERLY/DOWNSLOPE PATTERN IN SPRING WITH A DRY AIRMASS IS NOTORIOUS FOR PRODUCING TEMPERATURES WARMER THAN ANTICIPATED. WHEN GFDI WILL CLIMB BACK INTO THE LOW END OF VERY HIGH CATEGORY.
LOW TEMPS WILL BE RIGHT ON THE BORDER OF FREEZING. BUT SOME OF THE HIGHER ELEVATIONS WEST OF THE RED RIVER VALLEY MAY BE CLOSE TO ADVISORY CRITERIA ON FRI.
A cold front will move into southwest Kansas overnight as an upper level disturbance crosses the Northern Plains.
ATMOSPHERE WAS UNSTABLE THIS AFTERNOON AS UPPER TROUGH PASSED THROUGH. THE UPPER TROUGH WAS WEAKENING THIS EVENING DUE TO NEW RIDGING AHEAD OF A STRONGER TROUGH IN THE EASTERN PACIFIC. THE PACIFIC TROUGH WILL PASS THROUGH OUR AREA FRIDAY EVENING BUT NOT AS STRONGLY AS TODAY/S TROUGH.
HIGH PRESSURE OVER THE NEW ENGLAND STATES LOOKS TO SLIDE DOWN THE EAST COAST AND WILL SETTLE OFF THE NORTH FLORIDA COAST.
SOUTHERLY SURFACE FLOW WILL REMAIN BETWEEN 4-12 MPH THROUGHOUT THE NIGHT AND WILL HINDER TEMPS FROM DROPPING BELOW THE LOW 40S IN THE EAST AND THE 50S IN THE WEST.
945 PM EST THU FEB 18 2016 HIGH PRESSURE WILL BUILD IN THROUGH TONIGHT. A WARM FRONT WILL APPROACH FRIDAY NIGHT.
650 PM EST THU FEB 18 2016 WARMER TEMPERATURES WILL ARRIVE FRIDAY AND CONTINUE THROUGH MUCH OF THE WEEKEND. HIGH CLOUDS STREAMING NORTHEAST TONIGHT AS A WARM FRONT APPROACHES THE AREA FROM THE SOUTHWEST. WARM FRONT MOVES WELL NORTH OF THE FORECAST AREA FRIDAY. SOUTHEAST FLOW DURING THE EVENING COULD KEEP SOME COOLER TEMPERATURES ACROSS DUJ AND VICINITY. BUT THINK THAT ANY FREEZING RAIN THREAT IS MINIMAL.
A FAST MOVING COLD FRONT WILL EXIT THE AREA THIS EVENING.
A STRONG H5 RIDGE OVERHEAD AND EXTENDING NORTH INTO CANADA WILL SUPPORT HIGH PRESSURE OVER THE GREAT LAKES SOUTH TO THE NORTH GULF. THESE FEATURES WILL SHIFT EAST TONIGHT AS A SHORT WAVE TROUGH MOVES ACROSS THE NORTHWEST FROM WEST TO EAST. ANOTHER MID LEVEL RIDGE WILL MOVE INTO THE PAC NORTHWEST FRIDAY IN A PROGRESSIVE ZONAL PATTERN. THE RESULT WILL BE BROAD HIGH PRESSURE STRETCHING OVER THE LOCAL AREA. THOUGH IS SHOULD STILL BE BREEZY FOR THE LOWER VALLEY.
540 PM CST THU FEB 18 2016 Windy conditions will continue this evening ahead of an approaching cold front, helping keep the boundary layer mixed and holding temperatures above even our normal highs in the 50s overnight.
930 PM CST THU FEB 18 2016 UPPER LEVEL RIDGE DOMINATING THE PLAINS WITH A THERMAL RIDGE AXIS ACROSS THE HIGH PLAINS TODAY. PACIFIC COLD FRONT HAS STARTED TO CROSS THE ROCKIES. DECIDED TO PUSH UP THE STARTING TIME OF THE HIGH WIND WARNING ACROSS PORTIONS OF NORTH CENTRAL NEBRASKA FROM MIDNIGHT CST TO NOW. A PACIFIC COLD FRONT WILL MOVE ACROSS THE AREA OVERNIGHT. WILL GO AHEAD AND UPGRADE PORTIONS OF CWA FROM THE HIGH WIND WATCH TO A HIGH WIND WARNING. EVEN THOUGH WE SEE A COLD FRONTAL PASSAGE OVERNIGHT. THE FAST MOVING PACIFIC FRONT WILL ONLY BRING SLIGHTLY COOLER TEMPS FOR FRIDAY. SHOULD SEE MORE SUN AND SIDED WITH THE WARMER GUIDANCE.
Ongoing wildfires will continue to be fueled by the gusty winds despite the increasing in humidity and cooler temps. Winds will lessen Friday morning as a weak cold front moves into NE OK.
CLOUDS WILL BE MORE PROMINENT THAN TODAY AS FLOW TURNS MORE E/NE IN THE LOW LEVELS AND THE STRATOCU PANCAKE BENEATH THE SUBSIDENCE INVERSION AT ABOUT 5K FT.
THIS WILL ALLOW LOW TEMPERATURES TO BE MUCH WARMER THAN LAST NIGHT EVEN UNDERNEATH CLEAR SKIES. A COLD FRONT WILL SINK SOUTHWARD OUT OF THE PLAINS ON FRIDAY AND STALL OUT OVER THE I-44 CORRIDOR IN MISSOURI.
626 PM EST THU FEB 18 2016 HIGH PRESSURE WILL BUILD IN THROUGH TONIGHT. A WARM FRONT WILL APPROACH FRIDAY NIGHT.
Upper ridge rebuilds over NorCal for the weekend bringing warmer and drier weather.
THESE WINDS ARE AHEAD OF A VIGOROUS COLD FRONT THAT AT 2PM HAD MOVED INTO NORTHEAST UT. UDOT WEBCAMS ALONG 191 INDICATED SNOW AND BLOWING SNOW ALONG THE RIDGE OF THE EASTERN UINTAS. TEMPERATURES WILL BE A LITTLE COOLER MOST PLACES AS COMPARED TO TODAY'S.