Aikyam-Lab/Synoptic-Bench huggingface dataset:
419 AM EST TUE NOV 17 2015 HIGH PRESSURE EXTENDING FROM JAMES BAY CANADA SOUTH TO VIRGINIA WILL MAINTAIN DRY WEATHER WITH ABOVE NORMAL TEMPERATURES THROUGH TUESDAY.
132 AM EST TUE NOV 17 2015 HIGH PRESSURE WILL RIDGE INTO THE AREA FROM THE NORTH TODAY.
A STRENGTHENING AREA OF LOW PRESSURE OVER CENTRAL KANSAS WILL BRING WIDESPREAD RAINFALL TO THE NORTHLAND ON TUESDAY NIGHT.
1231 AM EST TUE NOV 17 2015 HIGH PRESSURE OVER EASTERN CANADA BUILDS SOUTH TONIGHT THROUGH TUESDAY AND THEN SHIFTS EAST TUESDAY NIGHT.
An upper-level storm system and associated cold front will move across West Central Texas, from west to east, tonight. Then, as the cold front pushes across West Central Texas, mainly between the hours of 10 PM and 2 AM, a line of showers and thunderstorms will move with this front. Tuesday night, with drier conditions, clear skies, and light winds behind the cold front, we are expecting lows to fall into the 30s in our southern valley locations, while lows near 40 should be common elsewhere.
A STRONG COLD FRONT WILL MOVE ACROSS THE TAF SITES TUESDAY MORNING WITH WIND GUSTS UP AROUND 40 KNOTS. A STRONG COLD FRONT WILL MOVE THROUGH THE TAF SITES TUESDAY MORNING WITH POSSIBLE GUSTS OVER 40 KNOTS. CLOUDS WILL LOWER BEHIND THE COLD FRONT. ON THE BACK SIDE OF THE LOW. AS THE LOW MOVES OFF TO THE NORTHEAST AND PRECIP MOVES OUT OF THE AREA.
Deep trough moving through the Southern Plains will continue to pump up the ridge over the southeastern states. Southeasterly winds will increase out ahead of an approaching cold front today, helping to increase low-level moisture and push afternoon temperatures back into the upper 70s and lower 80s.
AN UPPER LEVEL TROUGH OF LOW PRESSURE CURRENTLY OVER THE FOUR CORNERS REGION WILL SLOWLY LIFT NORTHEASTWARD ACROSS THE CENTRAL PLAINS AND EVENTUALLY THE GREAT LAKES REGION THROUGH THE PERIOD.
A BROAD LONG WAVE RIDGE NOW BUILDING INTO THE AREA FROM THE SOUTHWEST WILL CONTINUE TO DO SO INTO TUESDAY.
A WARM FRONT CONTINUED TO LIFT NORTHEAST ACROSS EAST TEXAS AND NORTH LOUISIANA THIS EVENING AND WILL ALLOW FOR TEMPERATURES TO RISE OVERNIGHT AND HELP SET THE STAGE FOR OUR THREAT FOR SEVERE WEATHER AHEAD OF AND ALONG A TRAILING COLD FRONT FROM A STRONG STORM SYSTEM MOVING IN FROM THE WEST.
WITH FREEZING TEMPERATURES FOR MUCH OF SOUTHEAST ARIZONA. WITH CONSIDERABLY WARMER DAYTIME TEMPERATURES DURING THE LATTER PART OF THIS WEEK. THE UPPER LOW CONTINUED TO PROGRESS FARTHER EAST LATE THIS EVENING WITH WRAP AROUND CLOUDINESS AND A FEW SHOWERS NORTHEAST OF TUCSON TO THE WHITE MOUNTAINS. TEMPERATURES CONTINUE TO DROP WITH NEAR FREEZING READINGS ALREADY BEING REPORTED IN SIERRA VISTA AND NOGALES AS OF 9 PM MST. DEEP UPPER LOW OVER NW NEW MEXICO WITH FLOW ALOFT BECOMING INCREASINGLY NWLY ACROSS SE ARIZONA AT THIS TIME. EXPECT FREEZING TEMPS ACROSS MUCH OF SE ARIZONA LATE TONIGHT AND EARLY TUE MORNING. MUCH OF THE TUCSON METRO AREA AND SOUTH CENTRAL PINAL COUNTY WHERE TEMPS ARE FORECAST TO REMAIN ABOVE FREEZING.
CLOUDS WILL INCREASE ACROSS NORTHWESTERN OKLAHOMA NEAR THE MID/UPPER LOW AND EVEN A FEW LIGHT SHOWERS COULD OCCUR. COOLER.
328 AM CST TUE NOV 17 2015 THE SURFACE ANALYSIS FROM 06Z SHOWED A COLD FRONT ACROSS THE EASTERN DAKOTAS. THERE WAS A LOW PRESSURE CENTER IN EXTREME NORTHEAST NEW MEXICO AND THE OKLAHOMA PANHANDLE PUMPING MOIST AIR TOWARD THE FRONT.
Not expecting any precipitation with the upper level low as it pulls out across Kansas tonight.
317 AM EST TUE NOV 17 2015 HIGH PRESSURE WILL CONTINUE TO BUILD SOUTHEAST TODAY.
327 AM EST TUE NOV 17 2015 HIGH PRESSURE WILL CONTINUE TO BUILD SOUTHEAST TODAY.
1115 PM CST MON NOV 16 2015 RADAR MOSAIC THIS AFTERNOON SHOWING A PROGRESSIVE BAND OF SHOWERS MOVING NORTHEAST ACROSS THE AREA IN RESPONSE TO A MID-LEVEL TROUGH MOVING THROUGH MN/IA. TEMPERATURES WERE IN THE UPPER 40S TO THE LOWER 50S. LOOK FOR A GENERAL INCREASE IN SHOWERS FROM SOUTHWEST TO NORTHEAST AS A STRONGER MID-LEVEL TROUGH DEEPENS/CLOSES OFF OVER THE SOUTHERN PLAINS. ISOLATED EMBEDDED THUNDER IS ALSO POSSIBLE TO FOCUS SOME OF THE HIGHER-END PRECIPITABLE WATER VALUES.
These gusty winds should help the warm air advection, causing afternoon temps to be much warmer than normal.
COLD FRONT APPEARS TO JUST NOW BE ENTERING NWRN NM. /ISSUED 536 PM CST MON NOV 16 2015/ SCATTERED THUNDERSTORMS THIS AFTERNOON HAVE A GOOD CHANCE AT FORMING A LINE OF STORMS LATER THIS EVENING AS A COLD FRONT MOVES THROUGH THE REGION. THAT WINDOW WILL BEGIN TO SHUT WITH SUNSET AS INSTABILITY DECREASES WITH COOLER TEMPERATURES. MID LEVEL CLOSED LOW WILL MOVE FROM THE NWRN PANHANDLE AT 12Z TO NWRN OKLA AND SCNTL/SWRN KS BY END OF DAY. HEIGHT GRADIENT SOUTH OF THE LOW AND MAGNITUDE OF PROGGED MID LEVEL JET STREAK ROUNDING THE BASE OF THE 700 MB TROUGH SUPPORT WARNING CRITERIA.
OBSERVATIONAL TRENDS CONTINUE TO SUPPORT A SLOWER EVOLUTION OF THE DEEPENING/OCCLUDING CYCLONE AS IT MOVES NORTHEAST ACROSS THE AREA TODAY AND TONIGHT. A SMALL AREA OF LOW-TOPPED CONVECTION MAY ALSO DEVELOP CLOSER TO THE UPPER LOW CENTER AS IT MOVES ACROSS CENTRAL KANSAS ALONG THE I-70 CORRIDOR DURING THE EARLY AFTERNOON AS WELL.
1242 AM EST TUE NOV 17 2015 MAINLY CLEAR SKIES WILL CONTINUE THROUGH TUESDAY WITH HIGH PRESSURE OVER SOUTHERN QUEBEC.
AHEAD OF THE WELL ADVERTISED COLD FRONT MAKING ITS WAY EWD OUT OF THE PLAINS STATES. WITH THE ASSOCIATED TRAILING COLD FRONT PUSHING INTO THE SE REGION BY MID WEEK. LATEST MODEL RUNS HAVE THE COLD FRONT BEGINNING TO CROSS INTO THE WRN HALF OF THE AREA AFTER MIDNIGHT. AS STRONG HIGH PRESSURE OUT OF THE NRN/CNTRL PLAINS DIVES SEWD INTO THE MIDWEST/OH VALLEY REGIONS HEADING TOWARD THE END OF THE WORK WEEK. THE HIGH MAY BECOME REINFORCED BY THE START OF THE NEW WEEK. WHICH IF THE CASE MAY RESULT IN SUBFREEZING TEMPS AGAIN FOR THE TN VALLEY.
TEMPERATURES WILL RISE OVERNIGHT WITH THE WARMER AIR STREAMING NORTH ALONG WITH THE RAIN.
1036 PM PST MON NOV 16 2015 **Historic wind event on tap for Tuesday** Damaging winds are likely on Tuesday as strong low pressure system tracks through the area. Then a transition to cooler temperatures, with more rain and snow showers is anticipated for late in the week. Temperatures south of I90 are in the mid to upper 30s while temps are hovering closer to freezing to the north. this won't last long as the warm front passes through in the next few hours and shoots temperatures back up into the upper 30s.
1223 AM EST TUE NOV 17 2015 HIGH PRESSURE WILL MOVE OFF THE COAST TONIGHT AND TUESDAY.
416 AM EST TUE NOV 17 2015 HIGH PRESSURE WILL RIDGE INTO THE AREA FROM THE NORTH TODAY.
352 AM CST TUE NOV 17 2015 Short term (Today - Tomorrow night): Closed upper level low is evident on water vapor imagery moving into the OK/TX Panhandles. A line of weakening thunderstorms moving across central Kansas this morning developed out ahead of a cold front across western Kansas last night and have persisted. However by early tomorrow the upper level low is progged to move into northeastern Kansas bring the chance for another round of light showers. The upper low will continue to push northeastward into Iowa by tomorrow afternoon continuing shower chances across northern Missouri. Showers will eventually come to an end tomorrow evening as the upper low becomes an open wave and shift northeast into the Upper Midwest. Temperatures today will be mild out ahead of the cold front with highs in the mid 60s.
WITH A RETURN OF AFTERNOON HIGHS IN THE 70S AND 80S AS HIGH PRESSURE BUILDS IN THE REGION. VIGOROUS UPPER LOW AND ASSOCIATED PVU CONTINUES TO MOVE OFF TO OUR EAST THIS EARLY MORNING. CLOUD COVER HAS KEPT LOCATIONS ACROSS THAT AREA RUNNING A BIT WARMER THAN EARLIER FORECAST TRENDS. ONCE ANY LINGERING CLOUDS FINALLY TRANSITION SOUTHEAST AND OUT OF THE AREA TEMPERATURES SHOULD RAPIDLY COOL AND SETTLE BELOW FREEZING FOR THE FEW HOURS REMAINING BEFORE SUNRISE. WILL BE POSSIBLE FOR THE HIGHER TERRAIN. SKIES WILL BE MOSTLY CLEAR AND TEMPERATURES A FEW DEGREES WARMER THAN THOSE FROM MONDAY. THE REGION WILL STAY ON THE NORTHERN FRINGE OF BUILDING SUBTROPICAL HIGH PRESSURE. UPPER 70S TO LOW 80S FOR THE LOWER ELEVATIONS AND UPPER 60S TO LOW 70S FOR THE FOOTHILLS/HIGHER TERRAIN.
THE UPPER LOW RESPONSIBLE FOR THE GUSTY WINDS AND MUCH COOLER TEMPERATURES WILL CONTINUE TO PUSH EAST OVERNIGHT. UPPER LOW CURRENTLY SPINNING NEAR THE FOUR CORNERS REGION WILL CONTINUE TO PUSH EAST OVERNIGHT.
1230 PM MDT SAT APR 2 2016 A WELCOME PERIOD OF QUIET AND PLEASANT WEATHER OVER THE NEXT SEVERAL DAYS WITH BROAD/FLAT UPPER-LEVEL RIDGING IN PLACE.
Gusty westerly winds up to 35 mph will gradually shift to the northwest as a secondary cold front drops southward. Winds will become rather gusty by afternoon, as a dry cold front passes through the area. This will especially be the case over south central Missouri, where the highest winds and lowest RH will be co-located. Much warmer conditions are then expected Sunday, with highs warming into the 70s as winds become southerly at the surface.
312 PM EDT SAT APR 2 2016 A COLD FRONT WILL PUSH THROUGH THE REGION TONIGHT AND MOVE INTO THE GULF OF MAINE SUNDAY MORNING. A STRONG NORTHWEST FLOW WILL DEVELOP IN THE WAKE OF DEPARTING LOW PRESSURE ON SUNDAY. A NARROW RIDGE OF HIGH PRESSURE WILL BUILD IN FROM THE WEST SUNDAY NIGHT.
ANTICYCLONIC RIDGE FLOW IS EVIDENT ON AFTERNOON WATER VAPOR IMAGERY. WITH THE CLEARLY DEFINED CLOCKWISE RIDGE CIRCULATION IN THE THINNING ATMO MOISTURE AND NOTED SUBSIDENT FLOW HEADING INTO SOUTHERN AZ AND SOUTH OF THE BORDER. RIDGING WILL CONTINUE TO SETTLE INTO THE SOUTHWEST STATES. WHILE PACIFIC TROUGHING UPSTREAM ASSOCIATED WITH THE SOUTHERN BRANCH OF THE JET BEGINS TO STALL OUT AND DEVELOP INTO A LARGER CLOSED LOW FEATURE WELL TO OUR SOUTHWEST OVER THE PACIFIC. CURRENT SATELLITE LOOPS SHOWS TWO TROUGH/LOWER HEIGHT ANOMALIES THAT WILL EVENTUALLY CONTRIBUTE TO THE LARGER SUBTROPICAL LOW. ONE ALONG THE WESTERN EDGE OF THE RIDGE AROUND 126W AND ONE FURTHER BACK UPSTREAM BACK AROUND 136W. REDUCING RIDGE HEIGHTS ACROSS THE INTERMOUNTAIN WEST. RIDGING WILL STAY IN PLACE OVER THE SOUTHWEST STATES.
AN UPPER LEVEL LOW PRESSURE SYSTEM MOVING ACROSS THE REGION WILL PRODUCE A VERY SLIGHT CHANCE FOR MOUNTAIN SHOWERS OR A FEW ISOLATED THUNDERSTORMS THIS EVENING OVER THE TRINITY ALPS AND YOLLA BOLLY MOUNTAINS.
HIGHS WILL GENERALLY RANGE FROM THE LOW TO MID 40S. COLD FRONT SWEEPING THROUGH THE AREA THIS AFTERNOON AND SHOULD CLEAR THE SOUTHEAST THIS EVENING.
238 PM EDT SAT APR 2 2016 A COLD FRONT NEAR THE COAST WILL MOVE OFFSHORE THIS EVENING WITH HIGH PRESSURE BUILDING INTO THE AREA THROUGH SUNDAY.
TONIGHT THROUGH SUNDAY OVER NIGHT HIGH PRESSURE WILL CONTINUE TO DOMINATE THE WEATHER WITH BREEZY AREAS DEVELOPING ALONG AND NEAR THE EAST SLOPES OF THE MOUNTAINS AS A LEE SIDE TROUGH DEVELOPS. A WEAK UPPER LEVEL LOW PRESSURE TROUGH WITH LIMITED PACIFIC MOISTURE WILL BRING INCREASED CLOUDS WITH SCATTERED RAIN AND SNOW SHOWERS. THEN AS THE RIDGE EXITS TO THE EAST.
241 PM CDT SAT APR 2 2016 A mean western ridge/eastern trough pattern will prevail over the CONUS through much of the forecast period.
1225 PM CDT SAT APR 2 2016 FOR 18Z TAFS /ISSUED 1039 AM CDT SAT APR 2 2016/ THIS MORNING STARTED OFF 10 TO 15 DEGREES COOLER THAN YESTERDAY WITH OVERNIGHT LOWS IN THE 40S. CURRENT TEMPS ACROSS THE TN VALLEY ARE IN THE LOW TO MID 50S WITH A FEW CLOUDS PASSING THROUGH. NW WINDS WILL BE 10 TO 15 MPH WITH GUSTS 15 TO 20 MPH AND UP TO 30 MPH IN THE HIGHER TERRAIN.
1232 PM CDT SAT APR 2 2016 Updated aviation discussion for the 18z TAF issuance The two main concerns in this forecast are strong winds this afternoon and freezing temps tonight. Both events are likely to be focused mainly north and east of a kmdh to khop line, courtesy of a deepening low pressure system that will move east across the Great Lakes region. The next item on the docket is near-freezing temps late tonight. On Sunday, winds will become southerly on the back side of retreating high pressure. Highs should be mainly in the lower to mid 60s.
RIDGE AXIS BUILDING OVER BRITISH COLUMBIA THE REMAINDER OF THE WEEKEND.
354 PM CDT SAT APR 2 2016 SFC RIDGING OVER WCNTRL TX THIS AFTERNOON WILL GRADUALLY SHIFT E INTO SE TX OVERNIGHT. SSW WINDS WILL RETURN ON THE BACKSIDE OF THE RIDGE. AS H850 WINDS BECOME MORE WNW LATE IN THE DAY SUNDAY WITH THE PASSAGE OF THE OPENING TROUGH OVER W TX THAT WILL RIDE E ALONG THE COASTAL UPPER TROUGH AXIS.
1117 AM MDT SAT APR 2 2016 HIGH PRESSURE WILL BE BUILDING OVER THE GREAT BASIN THIS WEEKEND WITH A FEW WEAK WAVES RIDING OVER THE TOP AND DROPPING SOUTHEAST ACROSS OUR NORTHERN ZONES. MODELS DRAGGING SOME CLOUDS THROUGH AND POSSIBLY A SHOWER OR TWO THIS AFTERNOON AND AGAIN LATE SUNDAY AFTERNOON AND EVENING OVER THE HIGHER PEAKS.
1204 PM CDT SAT APR 2 2016 Quiet weather conditions continue into the start of this weekend as vort max associated with the previously discussed upper-level trough axis pushes off eastward and dry PWATs keeps the forecast area precip free.
POSSIBLY DAMAGING WINDS EXPECTED WITH A COLD FRONT TONIGHT.
Temperatures overnight have fallen to near or just below freezing, with a few low spots hitting the 20s. Lee trof and southerly surface winds strengthen overnight, keeping overnight lows tonight up around 40. These winds should diminish some during the mid to late afternoon hours as the cold front approaches. Model soundings continue to show deep mixing likely occurring ahead of the advancing cold front, resulting in dry conditions and minimum relative humidity values plunging into the upper teen to mid 20 percent range.
/18Z TAFS/ VFR CONDITIONS WILL CONTINUE FOR AT LEAST THE NEXT 24-30 HOURS AS HIGH PRESSURE MOVES FROM WEST TO EAST ACROSS THE REGION. BANDS OF CIRRUS DRIFT OFF TO THE EAST AHEAD OF AN UPPER LEVEL TROUGH/SHEAR AXIS. A DRY AND SUNNY DAY IS FORECAST FOR SUNDAY WITH WARMER TEMPERATURES WITH EXPECTED HIGHS IN THE MID TO UPPER 70S.
211 PM PDT SAT APR 2 2016 High pressure will provide dry conditions and above average temperatures this weekend.
205 PM CDT SAT APR 2 2016 Southeast New Mexico and west Texas will be caught between a deep East Coast upper trough, and a West Coast upper ridge for much of the coming week.
1234 PM MDT SAT APR 2 2016 LOCAL AREA WILL BE ON THE EASTERN PERIPHERY OF A RIDGE CENTERED OVER THE WESTERN CONUS. BREEZY AND WARMER.
359 PM CDT SAT APR 2 2016 WEAK HIGH PRESSURE ACROSS THE AREA LATE THIS AFTERNOON AND TONIGHT WILL RESULT IN CONTINUED DECREASING WIND SPEEDS ALONG WITH A SHIFT TO A MORE SOUTH OR SOUTHWEST DIRECTION THROUGH TONIGHT. WITH THE WIND SHIFT WILL COME INCREASING WARM ADVECTION LATE TONIGHT THROUGH SUNDAY MORNING BEFORE NEXT LOW PRESSURE AND COLD FRONT SLIDES THROUGH EASTERN DAKOTAS.
149 PM EDT SAT APR 2 2016 A COLD FRONT EAST OF THE MIDLANDS WILL MOVE OFF THE COAST THIS AFTERNOON. HIGH PRESSURE WILL BUILD INTO THE AREA THROUGH SUNDAY.
CLOUDS WILL BE SLOW TO CLEAR OUT IN THE SOUTH AND MINS LOOK TO BE IN THE LOWER/MID 60S. HIGH PRSSURE BUILDING INTO THE SOUTHEAST STATES WILL PRODUCE A NORTH FLOW AND RESULT IN A COOLER/DRIER DAY. WEST TO EAST ORIENTED HIGH PRESSURE STRETCHING FROM THE NORTHERN GULF OF MEXICO TO OFF OF THE SOUTHEAST U. HIGH PRESSURE WILL RETREAT SEAWARD AS THE NEXT FRONT APPROACHES AND MOVES THROUGH THU. RIDGE AXIS EXTENDING WEST/EAST NEAR THE LOCAL WATERS WILL BRING LIGHT WINDS MON. STRONG HIGH PRESSURE MOVING OFF THE EASTERN SEABOARD WED WILL PRODUCE A FRESH EAST BREEZE AND POOR TO HAZARDOUS BOATING.
407 PM MDT SAT APR 2 2016 LOCAL AREA WILL BE ON THE EASTERN PERIPHERY OF A RIDGE CENTERED OVER THE WESTERN CONUS. BREEZY AND WARMER.
A DEEP MID/UPPER LVL TROUGH IS MOVING ACROSS THE NE STATES. PUSHING A SFC COLD FRONT BOUNDARY DOWN TO FLORIDA. 12Z SOUNDING DATA DEPICTED SLIGHTLY COOLER AIR ALOFT.
A DRY SURFACE BOUNDARY TO OUR NORTH WILL COME THROUGH OVERNIGHT AND WILL REINFORCE THE COLD ADVECTION, SO THAT MOST OF MIDDLE TENNESSEE HAS BEEN UPGRADED TO A FREEZE WARNING LATE TONIGHT AND TOMORROW MORNING, AND A FROST ADVISORY FOR SLIGHTLY WARMER AREAS TO THE WEST AND SOUTH OF NASHVILLE.
As of 06Z the cold front was progressing through the western part of the area and had just moved through Dothan.
A WEAK WAVE WILL MOVE EAST ACROSS THE PACIFIC NORTHWEST TODAY WEAKENING THE UPPER RIDGE OVER THE REGION.
301 PM PDT SAT APR 2 2016 CUMULUS FIELDS HAVE DEVELOPED THIS AFTERNOON EAST OF ABOUT ROSEBURG AND GRANTS PASS AHEAD OF A WEAK UPPER LEVEL LOW PRESSURE TROUGH PUSHING ONTO THE WEST COAST. TONIGHT WILL BE QUIET AS THIS FIRST IMPULSE MOVES THROUGH AND EAST, AFTERNOON HEATING DISAPPEARS, AND RIDGING MOVES IN.
COLD FRONT CONTINUES TO PUSH SEWD AND WAS ALONG A LINE FROM EXTREME SE GA TO SUWANNEE VALLEY AT 18Z WITH LINGERING LOW CLOUDS EXTENDING BACK TO JESUP TO VALDOSTA. TEMPS WILL RUN A FEW DEGREES COOLER THAN NORMAL WITH HIGHS IN THE LOWER TO MID 70S. BROAD TROUGHING ALOFT AND HIGH PRESSURE AT THE SURFACE WITH CLEAR SKIES AND CALM WINDS WILL SET THE STAGE FOR BELOW NORMAL TEMPS ON SUNDAY NIGHT.
CONVERGENCE ALONG A TROUGH STRUNG OUT ACROSS LAKE SUPERIOR EARLY THIS MORNING HAS LED TO A BAND OF SNOWFALL THAT WILL SHIFT ONSHORE FROM THE KEWEENAW THROUGH MARQUETTE COUNTY THIS MORNING TO EARLY AFTERNOON. WINDS WILL PICK UP BEHIND THE TROUGH. TEMPS WILL BE COOLER THAN YESTERDAY. BUT MAINLY THE E HALF AS THE RIDGE WILL ALREADY BE OVER THE W BY 06Z TONIGHT. EXPECT COLDEST TEMPS TONIGHT OVER THE INTERIOR W WHERE THE RIDGE WILL MOVE IN EARLIER IN THE NIGHT. UPPER AIR PATTERN CONSISTS OF A 500 MB TROUGH OVER NEW ENGLAND 12Z SUN.
Some cloud buildups may lead to isolated light showers mainly across the higher terrain, but otherwise it will be dry.
255 PM MDT SAT APR 2 2016 UPPER LEVEL RIDGE TO OUR WEST WILL KEEP NORTHWEST FLOW ALOFT OVER THE CWA THROUGH THE PERIOD. HIGH TEMPERATURES SUNDAY SHOULD BE JUST A TOUCH WARMER THAN TODAY. WINDS WILL BE STRONGER ON THE PLAINS AND NORTHERN SECTIONS OF THE URBAN CORRIDOR BY SUNDAY AFTERNOON AS LOW PRESSURE SLIDES SOUTHEAST ACROSS THE GREAT PLAINS. SOUTHERN PARTS OF THE URBAN CORRIDOR SHOULD SEE LIGHTER WINDS DUE TO A WEAK LONGMONT ANTICYCLONE. BY SUNDAY NIGHT MODELS STILL SHOW THE UPPER RIDGE WEST OF COLORADO AND NORTHWEST FLOW ALOFT OVER THE FORECAST AREA.
BRINGING PATCHY FROST AND FREEZING TEMPS TO MUCH OF THE AREA OVERNIGHT. SOME CLOUDS LOOK TO CREEP IN FROM THE NORTH WITH A WEAK UPPER TROUGH BUT SHOULDNT STICK AROUND VERY LONG. AND POSSIBLE FREEZING TEMPERATURES TONIGHT. BUT ENHANCED MIXING MAY BRING WARMER TEMPERATURES AND DRIER AIR. A WEAK COLD FRONT SHOULD SLIDE THROUGH DURING THE EVENING HOURS. THE BIG QUESTION CURRENTLY IS IF WINDS WILL DIE DOWN ENOUGH TO DECOUPLE THE LOW LEVELS FOR TEMPS TO FALL BELOW FREEZING. THERE WONT BE MUCH STOPPING TEMPS FROM HITTING THE LOW 30S.
329 PM CDT SAT APR 2 2016 SATELLITE AND SURFACE ANALYSIS THIS AFTERNOON SHOWS A FAIRLY STRONG LOW PRESSURE SYSTEM MOVING THROUGH THE GREAT LAKES REGION. THE ASSOCIATED COLD FRONT WAS NEARING THE OH RIVER AND SHOULD ARRIVE INTO THE TN VALLEY EARLY SUNDAY MORNING. THE COLDER AND DRIER AIR BEHIND THE FRONT WILL SEND TEMPS DOWN TOWARDS THE FREEZING MARK FOR MAINLY OUR SOUTHERN MIDDLE TENNESSEE COUNTIES AND HAVE CONTINUED THE FREEZE WARNING FOR THOSE COUNTIES. MUCH OF NORTHERN ALABAMA SHOULD REMAIN ABOVE FREEZING WITH ONLY THE WIND SHELTERED VALLEYS THAT MAY BRIEFLY SEE TEMPS DROP BELOW FREEZING CLOSE TO SUNRISE SUNDAY. HIGH PRESSURE MOVES QUICKLY THROUGH THE AREA ON SUNDAY AND SHOULD BE TO OUR EAST BY SUNDAY NIGHT, WHICH WILL ALLOW WINDS TO BECOME MORE SOUTHERLY IN NATURE.
LOOKS LIKE MOST OF SOUTH FLORIDA WILL STAY DRY AND VFR THROUGH THE REMAINDER OF THE AFTERNOON AS THE MAIN BAND OF SHOWERS AND THUNDERSTORMS ASSOCIATED WITH THE COLD FRONT SHOULD STILL BE WORKING ITS WAY DOWN THE PENINSULA.
524 PM EDT SAT APR 2 2016 HIGH PRESSURE WILL BUILD INTO THE AREA THROUGH SUNDAY.
WILL DROP BELOW THE FREEZING MARK. THOSE WITH AGRICULTURAL INTERESTS ARE URGED TO TAKE PROTECTIVE ACTION TO PREVENT ANY DAMAGE FROM THESE FREEZING TEMPERATURES. ALONG WITH LOWS COMFORTABLY ABOVE FREEZING IN MOST SPOTS. LOWS WILL REMAIN WELL BELOW NORM BUT GENERALLY ABOVE FREEZING.
251 PM CDT SAT APR 2 2016 EARLY AFTERNOON OBJECTIVE SURFACE ANALYSIS INDICATED A SEASONABLY DEEP SURFACE CYCLONE MOVG THROUGH THE GREAT LAKES. THREE-HOUR PRESSURE RISES OF 1-2 MB IN THE WAKE OF THE LOW CONT TO MOVE THROUGH THE CWA THIS AFTN AND CONT TO ALLOW FOR GUSTY NORTHWEST WINDS. THE NEXT SHRTWV OF INTEREST FOR THE CWA WAS CURRENTLY TOPPING THE RIDGE IN WRN ALBERTA. VERY STEEP LOW-LEVEL LAPSE RATES ARE EXPECTED ALONG THE TRAILING COLD FRONT ON SUNDAY OVER NORTHERN NEB/SD.
/ISSUED 1122 AM CDT SAT APR 2 2016/ SFC RIDGING HAS BUILT SE INTO MUCH OF TX THIS MORNING.
1205 PM MDT SAT APR 2 2016 UPDATED AVIATION TEMPERATURES WILL BE WELL ABOVE SEASONAL AVERAGES TODAY AS A RIDGE OF HIGH PRESSURE BUILDS OVER THE NORTHERN ROCKIES. MLV UPDATED 1800Z UPPER-LEVEL RIDGE WILL PERSIST WITH DRY AND UNSEASONABLY WARM CONDITIONS ACROSS THE REGION.
335 PM CDT SAT APR 2 2016 LOW PRESSURE OVER LAKE ERIE EARLY THIS AFTERNOON WITH A COLD FRONT ACROSS FLORIDA.
AND POSSIBLY DAMAGING WIND IS EXPECTED WITH A COLD FRONT TONIGHT. AND WARNING WHICH CONTS OVER THE RIDGE ZONES. THE WIND WILL SUBSIDE AND CLOUDS GRADUALLY DIMINISH ON SUNDAY AS FLEETING HIGH PRESSURE SLIDES ACRS THE AREA. TROUGH ON SUNDAY NIGHT. HAVE THE HIGHER POPS ACROSS THE NORTHERN COUNTIES INITALLY.
328 PM EDT SAT APR 2 2016 A STRONG COLD FRONT WILL CROSS THE AREA OVERNIGHT. LOW PRESSURE ALONG THE FRONT WILL TRACK SOUTH OF THE REGION EARLY SUNDAY.
AS THE UPPER TROUGH HAS PUSHED TO THE EAST. A WARMING TREND WITH MAINLY DRY WEATHER AS A FEW WEAK COLD FRONTS DRIFT INTO NORTHERN AR OVER THE NEXT FEW DAYS.
/issued 205 PM CDT SAT APR 2 2016/ Southeast New Mexico and west Texas will be caught between a deep East Coast upper trough, and a West Coast upper ridge for much of the coming week.
TEMPERATURES IN THE FLORIDA KEYS ARE IN THE LOWER TO MID 80S. BUT CONTINUE TO SAMPLE ELEVATED ECHOES WELL TO THE NORTHWEST ASSOCIATED WITH THE THUNDERSTORMS ALIGNED ALONG A COLD FRONT. THE COLD FRONT CURRENTLY STRETCHED FROM NORTH FLORIDA INTO THE SOUTH/CENTRAL GULF OF MEXICO WILL CONTINUE TO SHIFT SOUTHWARD LATE THIS EVENING.
1122 AM MDT SAT APR 2 2016 AN UPR LEVEL RIDGE AXIS WL BE OVER NV TODAY AND TONIGHT. HIGHS TODAY WL BE WARMER THAN YESTERDAY AND WL BE AROUND TO A LITTLE ABOVE AVERAGE.
1238 PM CDT SAT APR 2 2016 RIDGING ALOFT WILL PROVIDE QUIET AVIATION WEATHER ACROSS THE REGION THROUGH THE WEEKEND.
UPPER AIR ANALYSIS THIS MORNING SHOWED NEARLY ZONAL FLOW ACROSS SOUTH TEXAS AND A RIDGE OVER THE WESTERN STATES. HIGH PRESSURE WAS CENTERED OVER WEST TEXAS. THE UPPER RIDGE WILL MOVE TO THE EAST AND TURN THE FLOW OVER TEXAS TO THE NORTHWEST.
HIGH PRESSURE ALOFT WILL MAINTAIN DRY WEATHER CONDITIONS AND MILD TEMPERATURES OVER THE REGION THROUGH THURSDAY.
339 AM MST WED JAN 27 2016 QUIET CONDITIONS WILL CONTINUE TODAY AS A RIDGE OF HIGH PRESSURE REMAINS OVER THE WEST. THOUGH THE RIDGE WILL WEAKEN FURTHER IN RESPONSE TO A SECOND TROUGH OF LOW PRESSURE MOVING FROM THE EASTERN PACIFIC TO THE NORTHWESTERN U.
DID ADD A SLIGHT CHANCE FREEZING RAIN MENTION INTO THE FORECAST. WITH THE NAM/GFS ABOUT 3 DEGREES COOLER AT THE 925 MB LEVEL.
GENERALLY IN THE LOW TO MID 30S. WITH A STRONG RIDGE IN PLACE OVER THE REGION. DRY AND WARMER WEATHER CAN BE EXPECTED THROUGH THE FIRST HALF OF THIS WEEKEND.
THE LAST IN THIS SERIES OF UPPER DISTURBANCES IS NOW ROUNDING THE BASE OF THE LONG WAVE TROUGH OVER TX. THESE CLOUDS WILL LIKEWISE CLEAR OUT BY THIS TIME TOMORROW W/ SKC FOR LATE WEEK AS THE UPPER RIDGE BUILD PRESURE HEIGHTS ALOFT FOR MUCH OF THE COUNTRY W/ JAN THAW. /ISSUED 426 AM CST WED JAN 27 2016/ WATER VAPOR IMAGERY INDICATES THE BROAD UPPER TROF EXTENDING FROM THE ERN GREAT LAKES REGION SWWD ACROSS THE OH/TN VALLEYS AND ON DOWN INTO OUR REGION WITH A WEAK SHORT WAVE DROPPING SWD OVER FAR WEST TX.
A SHARP TROUGH AXIS WILL QUICKLY SWEEP THROUGH THE EASTERN CONUS LATE THURSDAY/THURSDAY NIGHT AND COULD BRING A FEW FLURRIES TO THE UPPER PLATEAU PER 00Z GFS.