Aikyam-Lab/Synoptic-Bench huggingface dataset:
951 PM EDT THU AUG 6 2015 LOW PRESSURE WILL MOVE THROUGH THE MOUNTAINS OF VIRGINIA AND NORTH CAROLINA. AS THE LOW LINGERS OVER THE CAROLINAS ON FRIDAY. NORTHEASTERLY WINDS WILL BRING COOLER TEMPERATURES AND A CONTINUED CHANCE OF SHOWERS AND THUNDERSTORMS. CONDITIONS WILL GRADUALLY IMPROVE THROUGH THE WEEKEND AS THE LOW MOVES OFF THE MIDDLE ATLANTIC COAST AND HIGH PRESSURE BUILDS IN FROM THE OHIO VALLEY. CONCENTRATION OF SHOWERS/EMBEDDED STORMS SET UP ALONG HIGHER THETA-E RIDGE FROM CENTRAL NC NORTHWEST INTO SW VA. MODELS HOLD ONTO THIS THETA-E RIDGE THROUGH EARLY OVERNIGHT. AS THE LOW PUSHES THROUGH THE MOUNTAINS AND INTO THE COASTAL PLAIN OF THE CAROLINAS TONIGHT. AS THE LOW SITS AND SPINS TO OUR SOUTHEAST ON FRIDAY.
HIGH PRESSURE ALOFT WILL MOVE EAST OF THE AREA DURING THE DAY FRIDAY. ALLOWING A LOW PRESSURE SYSTEM TO APPROACH FROM THE NORTHEAST PACIFIC. COOL AND UNSETTLED CONDITIONS WILL PREVAIL OVER THE AREA THIS WEEKEND DUE TO LOW PRESSURE ALOFT. THE CLOUDS SHOULD DISSIPATE SOME THIS EVENING AS THE RIDGE AXIS MOVES OVERHEAD. A WEAK UPPER LEVEL RIDGE PRESENTLY OVER THE REGION WILL MOVE EAST OF THE AREA FRI AFTERNOON. ALLOWING AN UPPER LEVEL TROF OVER THE NORTHEAST PACIFIC TO APPROACH THE PACIFIC NORTHWEST.
More of the same Fri as the subtropical ridge remains in control. The persistent sub tropical ridge is centered over New Mexico and will slowly edge east the next couple of days.
1247 AM EDT FRI AUG 7 2015 HIGH PRESSURE REMAINS NORTH OF THE AREA AS LOW PRESSURE APPROACHES THE MID-ATLANTIC AND PASSES SOUTH OF LONG ISLAND OVER THE WEEKEND.
SHOWERS AND STORMS SHOULD SHIFT EAST OF THE REGION BY LATE FRIDAY AFTERNOON WITH WEAK RIDGING BUILDING IN.
713 PM EDT THU AUG 6 2015 HIGH PRESSURE WILL DOMINATE OUR WEATHER FOR THE NEXT SEVERAL DAYS BRINGING DRY CONDITIONS AND COMFORTABLE TEMPERATURES.
720 PM EDT THU AUG 6 2015 UPPER LEVEL LOW PRESSURE OVER CANADA WILL MOVE EAST TONIGHT. WEAK HIGH PRESSURE WILL BUILD OVER THE AREA FRIDAY.
1159 PM EDT THU AUG 6 2015 WEAK HIGH PRESSURE WILL REMAIN POSITIONED OVER SE MICHIGAN DURING THE REST OF THE NIGHT AND THROUGH THE DAY/THURSDAY. WEAK LOW PRESSURE OVER THE MIDWEST WILL SEND GENEROUS COVERAGE OF HIGH CLOUDS OVER THE TERMINAL CORRIDOR WHICH WILL HELP PREVENT ANY MEANINGFUL FOG AS THE WIND BECOMES LIGHT AND VARIABLE OR CALM TOWARD SUNRISE. AS A RESULT, SOUTHWESTWARD EXTENSION OF HIGH PRESSURE OVER ONTARIO WILL HOLD FIRM PROVIDING GENERALLY FAVORABLE RADIATING CONDITIONS. PERPETUATION OF LOW LEVEL ANTICYCLONIC/EASTERLY FLOW WITHIN THE SOUTHERN PERIPHERY OF SOUTHERN CANADIAN HIGH PRESSURE SUSTAINING A DEEP LAYERED DRY/STABLE PROFILE. A GENERAL INCREASE IN MEAN THICKNESSES WITH TIME WILL PROVIDE A SLIGHT UPWARD TREND TO THE LOW LEVEL THERMAL PROFILE.
BUT WITH MUCH LESS PCPN AS HIGH PRESSURE BEGINS BUILDING OVER THE STATE. STILL KEEPING CLOSE TABS ON THE POSSIBILITY OF A HEAT ADVISORY FOR THE NEXT FEW DAYS WITH THE UPPER RIDGE SETTLING OVER THE REGION. HOWEVER WITH THE PROGGED RIDGE SETTLING DIRECTLY OVERHEAD THIS WEEKEND A BIT MORE WILLING TO LEAN TOWARDS THE WARMER END OF THE MOS SPEC- TRUM FOR THAT TIMEFRAME. EXTENDED GUIDANCE STILL HINTING AT THE POSSIBILITY OF ISO/WIDELY SCT PCPN FOR TUE/WED AS PWS SURGE AHEAD OF A FRONTAL BOUNDARY AS THE UPPER RIDGE NUDGES EVER SO SLIGHTLY BACK WEST. 41 HIGH PRESSURE OVER THE EASTERN GULF CONTINUES TO DOMINATE THE FLOW OUT OF THE SOUTH AND SOUTHWEST THROUGH THE WEEKEND.
COVERAGE OF SHOWERS NOT VERY IMPRESSIVE IN SPITE OF THE UPPER LOW PRESSURE IN PLACE. SOME IMPROVEMENT BY EARLY TO MID AFTERNOON FRIDAY WITH PASSAGE OF THE UPPER LOW.
956 PM PDT THU AUG 6 2015 PACIFIC LOW PRESSURE WILL MOVE THROUGH TONIGHT AND FRIDAY.
BUT THINK THE LOW-LEVEL MOISTURE WILL MANIFEST ITSELF MORE IN A LOW CEILING INSTEAD OF WIDESPREAD DENSE FOG GIVEN THE PROXIMITY OF THE LOW KEEPING THE LOW LEVELS JUST MIXY ENOUGH.
1107 PM EDT THU AUG 6 2015 AN UPPER TROUGH AND INCREASING MOISTURE WILL LEAD TO GREATER PRECIPITATION CHANCES TODAY INTO FRIDAY. THE RAIN HAS ALREADY COOLED TEMPERATURES INTO THE LOWER TO MIDDLE 70S FOR MOST LOCATIONS AND EXPECT LITTLE CHANGE THROUGH DAYBREAK. STRONG SHORT WAVE TROUGH MOVING THROUGH THE REGION DURING THE MORNING.
IN ASSOCIATION WITH A SHORT WAVE TROUGH MOVING INTO THE SE U. POPS WILL BEGIN TO INCREASE AREA WIDE FRIDAY MORNING AS A SHORT WAVE TROUGH APPROACHES THE AREA. A BETTER CHANCE OF SHOWERS AND STORMS WILL OCCUR MOST AREAS FRIDAY MORNING AS A SHORT WAVE TROUGH APPROACHES.
MOST LIKELY DUE TO THE POSTION OF THE 300-500 MB TROUGH AXIS. CHATTANOOGA AIRPORT, TN 72 84 69 91 / 50 20 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 69 82 67 88 / 50 20 10 0 OAK RIDGE, TN 70 82 66 88 / 50 20 10 0 TRI CITIES AIRPORT, TN 68 78 65 85 / 70 40 10 10.
REGIONAL OBS INDICATE A MAIN SFC CONVERGENCE AXIS ALONG THE SW FLANK OF THE DEPARTING UPR TROUGH (CURRENTLY MOVING THROUGH ERN KY).
1138 PM EDT THU AUG 6 2015 LOW PRESSURE WILL TRACK TO THE SOUTH OF PENNSYLVANIA OVERNIGHT AND EARLY FRIDAY BEFORE MOVING OFFSHORE THIS WEEKEND. HIGH PRESSURE WILL MOVE INTO THE AREA BEHIND THE DEPARTING LOW.
628 PM CDT THU AUG 6 2015 CURRENT SURFACE PRESSURE ANALYSIS INDICATES A LOW MOVING TO THE EAST ACROSS EASTERN SD WITH A WARM FRONT STRETCHED OUT ACROSS WEST CENTRAL AND SOUTHWEST MINNESOTA. WITH A COUPLE HEALTHY MESOCYCLONES. THE COLD FRONT WILL PASS THROUGH THE AREA TOMORROW MORNING AND SHIFT THE CONVECTION FARTHER EAST INTO WISCONSIN.
751 PM EDT THU AUG 6 2015 AN LOW PRESSURE CENTER WILL PULL EAST AWAY FROM THE REGION TONIGHT.
1015 PM EDT THU AUG 6 2015 AN LOW PRESSURE CENTER WILL PULL EAST AWAY FROM THE REGION TONIGHT.
732 PM EDT THU AUG 6 2015 AVIATION HIGH PRESSURE WILL CONTINUE TO PRODUCE FAIR WEATHER WITH SEASONABLE TEMPERATURES TONIGHT THROUGH FRIDAY.
WITH A AN UPPER LOW SPINNING OVER SOUTHERN ALBERTA AND NORTHERN MONTANA. HIGH PRESSURE IS BUILDING WITH AN AREA OF LOW PRESSURE MOVING INTO THE EASTERN DAKOTAS. EXPECT MAINLY DRY CONDITIONS AS HIGH PRESSURE BUILDS INTO THE AREA. SKIES WILL BE MAINLY CLEAR WITH TEMPERATURES FALLING INTO THE LOW 50S TO LOW 60S. OTHERWISE DRY CONDITIONS FOR THE AREA ON FRIDAY WITH HIGHS IN THE LOWER 80S TO LOWER 90S.
A SUBTROPICAL RIDGE IS DRAPED ACROSS SOUTH CENTRAL FLORIDA. WITH THE DEEP LAYERED RIDGE LYING ACROSS SOUTH FLORIDA AND THE FLORIDA KEYS. EAST WIND OF 5 TO 15 MPH WILL KEEP LOW TEMPERATURES IN THE LOWER TO MID 80S ALONG THE ISLAND CHAIN. A RIDGE EXTENDING ACROSS CENTRAL FLORIDA WILL SLOWLY DROP INTO SOUTH FLORIDA OVERNIGHT. GENTLE TO MODERATE EAST WINDS WITH THE HIGHEST WINDS SOUTH OF THE ISLAND CHAIN CAN BE EXPECTED BEFORE SLACKENING TOWARD MORNING. THE LOW TEMPERATURE IN KEY WEST WAS 68 DEGREES. THIS LOW TEMPERATURE OF 68 DEGREES IS TIED AS THE MINIMUM TEMPERATURE EVER RECORDED IN KEY WEST DURING THE MONTH OF AUGUST.
946 PM EDT THU AUG 6 2015 UPPER LEVEL LOW PRESSURE OVER CANADA WILL MOVE EAST TONIGHT. WEAK HIGH PRESSURE WILL BUILD OVER THE AREA FRIDAY.
ACTIVITY UNDER RIGHT ENTRANCE REGION OF 80KT JET STREAK ROTATING AROUND UPPER LOW IN SOUTHERN SK. WITH A AN UPPER LOW SPINNING OVER SOUTHERN ALBERTA AND NORTHERN MONTANA. HIGH PRESSURE IS BUILDING WITH AN AREA OF LOW PRESSURE MOVING INTO THE EASTERN DAKOTAS. EXPECT MAINLY DRY CONDITIONS AS HIGH PRESSURE BUILDS INTO THE AREA. SKIES WILL BE MAINLY CLEAR WITH TEMPERATURES FALLING INTO THE LOW 50S TO LOW 60S. OTHERWISE DRY CONDITIONS FOR THE AREA ON FRIDAY WITH HIGHS IN THE LOWER 80S TO LOWER 90S.
703 PM EDT THU AUG 6 2015 WEAK HIGH PRESSURE WILL REMAIN POSITIONED OVER SE MICHIGAN TONIGHT THROUGH FRIDAY. BETWEEN LOW PRESSURE SYSTEMS OVER THE MIDWEST AND MID ATLANTIC COAST. AS A RESULT, SOUTHWESTWARD EXTENSION OF HIGH PRESSURE OVER ONTARIO WILL HOLD FIRM PROVIDING GENERALLY FAVORABLE RADIATING CONDITIONS. PERPETUATION OF LOW LEVEL ANTICYCLONIC/EASTERLY FLOW WITHIN THE SOUTHERN PERIPHERY OF SOUTHERN CANADIAN HIGH PRESSURE SUSTAINING A DEEP LAYERED DRY/STABLE PROFILE. A GENERAL INCREASE IN MEAN THICKNESSES WITH TIME WILL PROVIDE A SLIGHT UPWARD TREND TO THE LOW LEVEL THERMAL PROFILE.
HIGH PRESSURE WILL CONTINUE TO PUSH OFF TO THE EAST OVERNIGHT. AND WENT AHEAD AND HOISTED A WIND ADVISORY FROM 06Z TONIGHT UNTIL 15Z ON SUNDAY FOR ZONES RESIDING ALONG THE BUFFALO RIDGE WHERE WINDS WILL BE HIGHEST. TO THE LOWER 70S OVER SOUTH CENTRAL SD.
1103 PM CST SAT MAR 5 2016 EXTENSIVE DECK OF STRATOCUMULUS ACROSS THE AREA THIS AFTERNOON LEFT IN THE WAKE OF LOW PRESSURE THAT PASSED THROUGH YESTERDAY. SKIES WERE CLEARING ACROSS MN WHERE MID-LEVEL RIDGING WAS MOVING IN. BY AFTERNOON WE WILL SEE A CHANCE OF SHOWERS AS A WEAK MID-LEVEL TROUGH INTERACTS WITH THIS INCREASINGLY MOIST/MILD AIR AND NOSE OF 850MB MOISTURE TRANSPORT. PLAN ON HIGH TEMPERATURES IN THE MIDDLE 40S TO THE LOWER 50S. SHOWER CHANCES CONTINUE INTO SUNDAY NIGHT AS THE WEAK MID-LEVEL TROUGH AND NOSE OF 850MB MOISTURE TRANSPORT MOVE EASTWARD THROUGH THE AREA.
THE COLD FRONT WILL JUST GRAZE THE AREA LATER TONIGHT THROUGH MID MORNING SUNDAY PRODUCING A WEAK WIND SHIFT TO THE NORTHWEST. MID/HIGH LEVEL CLOUDS PROPAGATING AHEAD OF THE COLD FRONT NOW. WINDS WILL SUBSIDE THIS EVENING AS MIXING DECREASES AND THE TROUGH MOVES EAST INTO NORTH DAKOTA. WINDS SHOULD NOT BE AS STRONG SUNDAY WITH THE TROUGH IN THE REGION. HAVE STAYED ON THE WARMER SIDE OF GUIDANCE. A COLD FRONT IS FORECAST TO MOVE EAST ACROSS THE DAKOTAS ON MONDAY.
Could have occasional breaks in the low cloud cover. Extensive high cloudiness overspreading west central Texas may have some disruptive influence on the low cloud development, with breaks in the low cloud cover possible. Abundant cloud cover and increasing moisture will result in mild temperatures tonight, with lows mainly in the lower and middle 50s. It will be a little cooler on Sunday, with afternoon highs mainly in the lower 70s.
LOOK FOR VFR WX THE NEXT 24 HRS AS HIGH PRESSURE MOVES ACROSS MIDDLE TENNESSEE ON SUNDAY.
1123 PM CST SAT MAR 5 2016 EXTENSIVE DECK OF STRATOCUMULUS ACROSS THE AREA THIS AFTERNOON LEFT IN THE WAKE OF LOW PRESSURE THAT PASSED THROUGH YESTERDAY. SKIES WERE CLEARING ACROSS MN WHERE MID-LEVEL RIDGING WAS MOVING IN. BY AFTERNOON WE WILL SEE A CHANCE OF SHOWERS AS A WEAK MID-LEVEL TROUGH INTERACTS WITH THIS INCREASINGLY MOIST/MILD AIR AND NOSE OF 850MB MOISTURE TRANSPORT. PLAN ON HIGH TEMPERATURES IN THE MIDDLE 40S TO THE LOWER 50S. SHOWER CHANCES CONTINUE INTO SUNDAY NIGHT AS THE WEAK MID-LEVEL TROUGH AND NOSE OF 850MB MOISTURE TRANSPORT MOVE EASTWARD THROUGH THE AREA.
BUT THE LOWEST RH LEVELS ARE STILL EXPECTED IN THE UPPER TEENS SO WE ARE NOT QUITE TO A RED FLAG SITUATION. TOMORROW AN UPPER TROUGH WILL BE APPROACHING FROM THE WEST. MOUNTAIN SNOWS WILL PICK UP SUNDAY AFTERNOON AS THE TROUGH GETS NEARER. WITH HIGHS REACHING THE LOW 70S A SEVERAL LOCATIONS IN EASTERN COLORADO.
1121 PM CST SAT MAR 5 2016 ISSUED AT 258 CST SAT MAR 5 2016 PRONOUNCED MID-LEVEL RIDGING FROM THE CANADIAN PRAIRIE PROVINCES INTO GREAT LAKES WILL DAMPEN TONIGHT INTO SUNDAY IN RESPONSE TO THE PROGRESSION OF A SERIES OF LOW-AMPLITUDE PERTURBATIONS FROM THE CNTRL ROCKIES INTO CNTRL PLAINS. THE INCREASING ZONAL FLOW ALOFT WILL INDUCE A DEEPENING LEE TROUGH OVER THE HIGH PLAINS TONIGHT WHICH WILL INITIALLY SHIFT EWD ACROSS THE DAKOTAS AND NEB SUNDAY BEFORE WEAKENING IN RESPONSE TO A DEEPENING LEE LOW OVER ERN MT.
AN INITIAL DISTURBANCE WHICH MAY BE THE REMNANT OF THE WARM FRONT WILL SPREAD LOWERING CLOUDS ACROSS THE AREA SUNDAY MORNING. THE STRONGER TROUGH AND COLD FRONT WILL APPROACH SUNDAY EVENING. THE COLD FRONT WILL MOVE THROUGH EASTERN UT BY ABOUT 03Z AND MAKE ITS WAY THROUGH WESTERN CO OVERNIGHT. WHAT WILL START AS WET HEAVY SNOW IN THE HIGHER ELEVATIONS SUNDAY AFTERNOON AND EVENING WILL TRANSITION TO MEDIUM DENSITY SNOW OVERNIGHT. THE 700 MB TROUGH PASSES THROUGH CO BETWEEN ABOUT 12Z AND 15Z FOLLOWED BY A FAIRLY UNSTABLE SOUNDING PROJECTED IN THE 700-500 MB LAYER. AS THE FORECAST MODELS HAVE ADVERTISED FOR THE LAST FEW DAYS, A STRONG CLOSED LOW WILL SLIDE SOUTH AND WEST OF THE AREA WITH A CLOSED LOW TRAVELING ALONG THE U.
1213 AM EST SUN MAR 6 2016 UPDATE/AVIATION AN AREA OF HIGH PRESSURE OVER IN WISCONSIN WILL TRACK EASTWARD TONIGHT THROUGH LOWER MICHIGAN. PATCHY DENSE FOG HAS FORMED NORTHEAST OF GRR WHERE SKIES HAVE CLEARED OUT SO HAVE UPDATED THE GRIDS/HWO/SPS TO ADD AREAS OF PATCHY DENSE FREEZING FOG. THE HIGH PRESSURE SYSTEM TRACKS THROUGH SOUTHWEST LOWER MICHIGAN ON SUNDAY. THE LONG WAVE TROUGH THAT HAS BEEN OVER THE EASTERN US WILL CHANGE TO A RIDGE. ECMWF/GFS/CMC ARE IN PRETTY GOOD AGREEMENT IN DEPICTING LOW PRESSURE OVER THE UPPER MISSISSIPPI VALLEY MOVING NORTHEASTWARD INTO ONTARIO AND DRAGGING A PACIFIC COLD FRONT WITH IT.
FORECAST SOUNDINGS SHOW LITTLE OPPORTUNITY FOR CONVECTION ROOTED IN THE LOWER LEVELS OF THE ATMOSPHERE. THIS LOW STRATUS WILL THEN MOVE INTO WESTERN OK BY 18Z TOMORROW AND CENTRAL OK TOMORROW AFTERNOON.
A LARGE RIDGE OF HIGH PRESSURE WILL BUILD OVER THE EASTERN HALF OF THE CONTINENT BEGINNING SUNDAY AND LASTING INTO THE UPCOMING WEEK. AS AN ANOMALOUS UPPER LVL RIDGE BUILDS OVR THE E COAST. MODELS ARE IN BETTER AGREEMENT ON BRINGING A QUASI-STATIONARY FRONTAL BOUNDARY RUNNING FROM THE MISS VALLEY THRU THE GRT LKS AT INTERFACE OF E COAST RIDGE AND PLAINS TROF THROUGH PA BY MIDWEEK. AS HIGH PRESSURE TRACKING EASTWARD ACROSS CANADA WILL NUDGE THE FRONT SOUTHWARD AND PIVOT IT FROM MORE OF A N-S ORIENTATION TO A W-E DIRECTION.
315 AM EST SUN MAR 6 2016 HIGH PRESSURE OVER NEW ENGLAND WILL GRADUALLY SETTLE SOUTH TODAY THROUGH TONIGHT. A TROUGH OF LOW PRESSURE WILL CROSS THE REGION ON MONDAY.
THIS EVENING THROUGH SUNDAY NIGHT THE LATEST UPPER-AIR ANALYSIS AND WATER VAPOR IMAGES SHOWED A LONG-WAVE RIDGE OVER THE CNTRL CONUS WITH LOTS OF MID- AND UPPER- LEVEL CLOUDINESS OVER THE WRN CONUS. AHEAD OF A SFC LEE TROUGH OVER ERN WY. BUT WITH MORE EXPECTED SUNSHINE THE HIGHS COULD BE EVEN A LITTLE WARMER THAN TODAY.
AS AN UPPER RIDGE MOVES ACROSS THE NORTHERN PLAINS AND REACHES THE UPPER MISSISSIPPI VALLEY LATE.
BUT MUCH WARMER WEATHER IS ON ITS WAY FOR THE COMING WEEK.
SUNDAY MINIMUM TEMPERATURES WILL FALL INTO THE LOW TO MID 50S (NEAR 60F AT COAST).
A WEAK AND DRY COLD FRONT JUST NORTH OF THE AREA WILL ALSO QUICKLY SHIFT THROUGH THE AREA THIS MORNING. A VERY DRY AIRMASS WILL REMAIN IN PLACE AND HIGH PRESSURE WILL WASTE NO TIME IN BUILDING INTO THE REGION TODAY. DEVELOPING BREEZY ONSHORE WINDS AT THE BEACHES THIS AFTERNOON WILL MAKE IT FEEL EVEN COOLER.
1134 PM CST SAT MAR 5 2016 FAIRLY BENIGN CONDITIONS EXPECTED THROUGH THE SHORT TERM WITH HIGH PRESSURE SLIDING EAST OF THE AREA AND WARM ADVECTION REGIME DEVELOPING. HIGH PRESSURE RIDGE AT THE SURFACE WAS SITUATED OVER THE UPPER MIDWEST. WITH A MID-LEVEL RIDGE BUILDING ACROSS THE NORTHERN PLAINS. AS THE RIDGE SLIDES EAST OF THE AREA TONIGHT. IF THE HIGHER MOMENTUM AND DRIER AIRMASS ALOFT IS ABLE TO MIX TO THE SURFACE. LOW TEMPS SHOULD RANGE NEAR 20 DEGREES NORTHEAST TO THE LOW 30S SOUTHWEST. TO THE LOW 50S SOUTHWEST. WITH DEWPOINTS POSSIBLY INTO THE LOWER 50S ACROSS SOUTHERN PORTIONS OF THE CWA.
A LARGE RIDGE OF HIGH PRESSURE WILL BUILD OVER THE EASTERN HALF OF THE CONTINENT BEGINNING SUNDAY AND LASTING INTO THE UPCOMING WEEK. AS AN ANOMALOUS UPPER LVL RIDGE BUILDS OVR THE E COAST. MODELS ARE IN BETTER AGREEMENT ON BRINGING A QUASI-STATIONARY FRONTAL BOUNDARY RUNNING FROM THE MISS VALLEY THRU THE GRT LKS AT INTERFACE OF E COAST RIDGE AND PLAINS TROF THROUGH PA BY MIDWEEK. AS HIGH PRESSURE TRACKING EASTWARD ACROSS CANADA WILL NUDGE THE FRONT SOUTHWARD AND PIVOT IT FROM MORE OF A N-S ORIENTATION TO A W-E DIRECTION. HIGH PRESSURE WILL MOVE OVER THE AIRSPACE THIS AFTERNOON AND REACH THE EASTERN SEABOARD BY 12Z MONDAY.
WILL TAKE A CONSENSUS APPROACH FOR BRINGING THE LOW LEVEL MOISTURE IN. AN UPPER LEVEL TROUGH/SFC COLD FRONT STARTS TO PUSH IN FROM THE EAST. THE TROUGH LIFTS NORTH OF THE REGION TAKING THE BULK OF ITS FORCING AWAY FROM THE LOCAL AREA. ANOTHER UPPER LEVEL TROUGH IS PROGGED TO BE EJECTING BITS OF ENERGY NORTHEAST. WHICH WHILE COOLER THAN PREVIOUS DAYS. THE UPPER LEVEL RIDGE RE-ESTABLISHES ITSELF FOR THE UPCOMING WEEKEND. DEVELOPING STRONGER RETURN FLOW BEHIND DEPARTING HIGH PRESSURE WILL TRY TO DRAG ONE MORE BATCH OF LOWER STRATUS THROUGH THE SITES UP UNTIL 08-09Z.
HIGH CLOUDS SPILLING AROUND THE TOP OF UPPER LEVEL RIDGE OF HIGH PRESSURE ACROSS CENTRAL TEXAS AND THE SOUTHERN PLAINS. MUCH WARMER MORNING LOW TEMPERATURES EXPECTED MONDAY MORNING RANGING FROM THE MID TO UPPER 50S AREAWIDE.
THE COLD FRONT IS NOW TO THE EAST OF THE AREA WITH THE PRECIPITATION COMING TO AN END ACROSS THE AREA. LOW LEVEL LIFT DUE TO NORTHWEST FLOW AND WEAK CYCLONIC FLOW IN THE LOWER LEVELS IS ENOUGH TO KEEP CLOUDS IN PLACE ACROSS SW VA AND N TN. CURRENT WATER VAPOR IMAGERY AND RAP UPPER AIR ANALYSIS INDICATES A TROUGH ALONG THE ATLANTIC SEABOARD WITH A RIDGE ACROSS THE GREAT PLAINS. HIGH PRESSURE IS MOVING IN QUICKLY BEHIND THE FRONT.
A PIECE OF ENERGY SPINS OUT OF AN UPPER LEVEL LOW OVER THE GULF OF ALASKA TODAY. DROPS SOUTHEAST ALONG THE WEST COAST TONIGHT AND CLOSES OFF INTO AN UPPER LEVEL LOW OVER COASTAL SOUTHERN CALIFORNIA ON MONDAY.
THE MODELS HAVE CONVERGED ON THE PANHANDLE WITH THE HIGHEST QPF (0. SFC WET BULB TEMPS DO DROP JUST BELOW FREEZING OVER THE PANHANDLE BY 06Z. WOULD LIKE TO SEE TEMPS A BIT COLDER THOUGH (THEY WILL BE HOVERING AROUND FREEZING).
Teleconnected ridging occurs Monday, effectively shunting this transport to our west, and keeping Pops out of the forecast for most of Monday and Monday night.
Strong storm system moving through NorCal this evening with cold front highlighted by low topped squall line. SATELLITE IMAGERY SHOWS THE COLD FRONT IS NOW INSIDE OF 130W, AND WITH ITS CURRENT MOVEMENT, IT WILL MOVE ACROSS INTERIOR NORCAL BY MID TO LATE EVENING ACCOMPANIED BY VERY HEAVY RAIN AND PERHAPS A LITTLE THUNDER. HIGH-RES MODELS CONTINUE TO POINT TOWARD THE POTENTIAL FOR A HIGH IMPACT WIND EVENT EARLY THIS EVENING ACROSS THE SACRAMENTO VALLEY AND EXTENDING EASTWARD INTO THE FOOTHILLS WITH 925 MB WINDS FORECAST TO REACH NEARLY 70 KTS AHEAD OF THE COLD FRONT. SNOW LEVELS WILL RAPIDLY LOWER BEHIND THE COLD FRONTAL PASSAGE LATE TONIGHT.
1134 PM CST SAT MAR 5 2016 Very dry air has pushed into the area behind a cold front with RH values in the teens to 20s this afternoon. Winds have been gusting from 15 to 20 mph across mostly the eastern CWA, with lesser speeds in the west as high pressure has built in. Very mild conditions are expected on Sunday night with surface winds continuing to be gusty ahead of the low pressure system.
THE UPPER RIDGE WILL CONTINUE TO BUILD INTO THE AREA TONIGHT. WITH THE SFC PRESSURE GRADIENT REMAINING FAIRLY TIGHT AS THE TROUGH MOVES INTO THE WESTERN PLAINS.
234 AM EST SUN MAR 6 2016 QUIET AND COOL WEATHER IS EXPECTED TODAY AS HIGH PRESSURE SITS OVER THE REGION.
THE COTEAU AND JUST DOWN WIND ALSO HAS THE HIGHEST POTENTIAL TO SEE SOME OF THESE HIGHER WINDS REACH THE SURFACE. THE MAIN UPPER TROF MOVES OVERHEAD MONDAY EVENING/OVERNIGHT. HIGHEST CAPE VALUES JUST AHEAD OF THE MID LEVEL TROF HAVE FALLEN WITH THE LATEST RUNS OF THE GFS.
435 AM EST SUN MAR 6 2016 HIGH PRESSURE WILL CROSS THE REGION TODAY. LOW PRESSURE WILL TRACK NORTH OF THE REGION MONDAY. FOLLOWED BY A COLD FRONT MONDAY NIGHT.
With high pressure in place, skies will be mostly clear with lows ranging from the lower 40s inland to the upper 40s along the panhandle coast. High pressure will remain in control of the weather through the short term period. Late in the day on Sunday, a large ridge will begin building across the Western Atlantic off the coast of North Carolina. This will result in increasing southeasterly flow across our region and with a building ridge aloft, expect a stretch of warmer temperatures to begin on Monday. High temperatures initially in the low to mid 70s on Sunday will warm into the mid to upper 70s on Monday. Overnight lows will also be much warmer, especially on Monday night, where values in the low to mid 50s are expected.
WHICH WOULD KEEP MINS ELEVATED IN THE LOWER 20S/AROUND 20 DEGREES. BUT ELECTED TO LEAVE OUT OF THE FORECAST DUE TO THE LOW PROBABILITY OF OCCURRENCE AT THIS TIME. WITH UPPER LEVEL RIDGE AXIS ARRIVING TOMORROW. SUPPORTIVE OF HIGHS IN THE LOWER 40S. SUGGESTIVE OF MAXES CLIMBING INTO THE LOWER 60S.
/ISSUED 349 PM CST SAT MAR 5 2016/ RETURN FLOW WAS WELL UNDERWAY LATE THIS AFTERNOON FOLLOWING LAST NIGHT/S COLD FRONT THAT HAS SINCE WASHED OUT NEAR I-20. NEGATIVELY TILTED TROUGH POSED TO EJECT ACROSS SERN COLORADO INTO NEBRASKA.
AS A COLD FRONT SLOWLY MOVES TO THE SOUTHEAST THROUGH MORNING. VERY LITTLE PROGRESS SOUTHWARD OF THE BACK EDGE OF THE LOW CLOUDS SEEMS TO BE OCCURRING AS OF NOW. WITH TEMPERATURES IN MANY AREAS REMAINING ABOVE FREEZING. WILL BRING DRY AND MUCH WARMER CONDITIONS INTO MID WEEK. BETWEEN AN UPPER LOW OVER TEXAS AND HIGH PRESSURE OFF THE SOUTHEAST UNITED STATES COAST.
1235 AM EST SUN MAR 6 2016 HIGH PRESSURE BUILDS IN TODAY. AND HAVE SOME MID TO HIGH CLOUDS WITH THIS BUT NO PRECIPITATION WITH VERY DRY AIR IN THE LOW LEVELS AND HIGH PRESSURE AT THE SURFACE. A VERY TRANQUIL PERIOD AS HIGH PRESSURE AT THE SURFACE AND RIDGING ALOFT DOMINATE.
HIGH PRESSURE ACROSS MUCH OF THE EASTERN UNITED STATES AND GULF OF MEXICO WILL GRADUALLY SHIFT EASTWARD OVER THE NEXT 24 HOURS.
EARLY AFTERNOON WATER VAPOR IMAGERY SHOWS AN UPPER LEVEL RIDGE ACROSS THE ROCKIES. WITH AN LONGWAVE TROUGH UPSTREAM OFF THE COAST OF CALIFORNIA.
103 AM EST SUN MAR 6 2016 HIGH PRESSURE WILL PERSIST OVER THE AREA THIS EVENING. A WEAK COLD FRONT WILL THEN PUSH OFFSHORE TONIGHT. HIGH PRESSURE WILL THEN EXTEND ACROSS THE AREA THROUGH MID WEEK. BUT WE SHOULD STILL STILL LOWS FALL INTO THE LOW TO MID 40S. QUIET/DRY WEATHER WILL DOMINATE THE PERIOD AS DEEP LAYERED HIGH PRESSURE BUILDS ACROSS THE DEEP SOUTH AND THE CAROLINAS.
TEMPS WERE IN THE MID 30S ALONG THE HIGHWAY 20 CORRIDOR AND THE LOW 40S ALONG INTERSTATE 80.
332 AM EST SUN MAR 6 2016 WEAK LOW PRESSURE WILL QUICKLY MOVE EAST OF THE AREA THIS MORNING. HIGH PRESSURE RETURNS LATER TODAY AND WILL PERSIST OVER THE SOUTHEASTERN STATES THROUGH THE MIDDLE OF THE WEEK. A COLD FRONT APPROACHES LATER IN THE WORK WEEK. THE H5 TROF AXIS /BASED ON MESO AND SYNOP SCALE PROGS/ CORRELATES FAIRLY WELL WITH WHERE RADAR ECHOES EXIST ATTM-- NAMELY BTWN THE BLURDG AND I-95 AS OF 08Z.
A TROUGH WAS APPROACHING THE WEST COAST. AHEAD OF THE TROUGH SEMI-ZONAL FLOW WAS EVIDENT OVER THE GREAT BASIN. WITH A SHORT WAVE RIDGE OVER THE PLAINS. THE WINDS WILL BE LIGHT TO BREEZY DURING THE AFTERNOON DUE TO THE 850MB TROUGH PUSHING THE STRONGER WINDS EAST OF THE AREA. A WEAK UPPER LEVEL SHORT WAVE TROUGH WILL MOVE ACROSS THE AREA DURING THE AFTERNOON.
WITH LIGHT WINDS AND LATEST UPPER AIR SOUNDING SHOWING DRY INVERSION IN THE LOW LEVELS. THEREAFTER TROUGH DIGS INTO THE WEST WITH INCREASING SOUTHERLY WINDS AND INCREASING MOISTURE.
HIGH PRESSURE CENTERED OVER CENTRAL IOWA THIS AFTERNOON WITH MUCH DRIER AIR THROUGH MUCH OF THE ATMOSPHERE ARRIVING. STRONG THETA-E ADVECTION WILL COMMENCE ON THE BACKSIDE OF THE HIGH AS IT DEPARTS OVERNIGHT. LIGHT WINDS TO BEGIN THE EVENING WILL BECOME BREEZY FROM NORTHWEST TO SOUTHEAST AFTER MIDNIGHT AS THE PRESSURE GRADIENT TIGHTENS AHEAD OF LOW PRESSURE DEVELOPING TO THE WEST.
241 AM EST SUN MAR 6 2016 QUIET AND COOL WEATHER IS EXPECTED TODAY AS HIGH PRESSURE SITS OVER THE REGION.
WINDS WILL BE LIGHT AND VARIABLE THROUGHOUT THE TAF CYCLE AS HIGH PRESSURE MOVES ACROSS THE AREA.
TEMPERATURES WILL SOAR INTO MIDDLE 40S IN SOUTH CENTRAL MICHIGAN TO THE LOWER 50S IN WEST CENTRAL INDIANA.
305 AM EST SUN MAR 6 2016 LOW PRESSURE OFF THE CAROLINA COAST THIS MORNING WILL MOVE FARTHER OFF THE COAST TODAY. A PRESSURE RIDGE MOVING INTO THE REGION BEHIND THE LOW WILL EXTEND THROUGH THE FORECAST AREA TONIGHT AND MONDAY.
HIGH PRESSURE WILL BEGIN TO BUILD INTO THE AREA TONIGHT AND MOVE OFF TO THE EAST ON SUNDAY AND INTO SUNDAY NIGHT.
AS A COLD FRONT SLOWLY MOVES TO THE SOUTHEAST THROUGH MORNING. VERY LITTLE PROGRESS SOUTHWARD OF THE BACK EDGE OF THE LOW CLOUDS SEEMS TO BE OCCURRING AS OF NOW. WITH TEMPERATURES IN MANY AREAS REMAINING ABOVE FREEZING. FRIES SHARP WARM UP EXPECTED ON THE BACKSIDE OF THE UPPER RIDGE MONDAY. WARM FRONT FEATURE SEEN ON ALONG THE 295-300K ISENTROPIC SURFACE ROUNDS THE RIDGE MONDAY AFTERNOON/EVENING.