Aikyam-Lab/Synoptic-Bench huggingface dataset:
SURFACE TEMPS VALID 16Z WERE ABOUT 2-7 DEGS F WARMER VERSUS THIS TIME WED. 18/12Z UPPER AIR PLOTS DEPICTED AN EXPANSIVE AREA OF HIGH PRESSURE OVER THE SWRN CONUS WWD INTO THE ERN PACIFIC TO NEAR 30N/130W. SUNNY SKIES TO MOSTLY SUNNY SKIES WILL PREVAIL TODAY AS THE UPPER HIGH PRESSURE SYSTEM CONTINUES TO GRADUALLY AMPLIFY OVER THE AREA. HIGH TEMPS THIS AFTERNOON WILL GENERALLY BE A DEGREE-OR-TWO WARMER VERSUS TEMPS ACHIEVED WED.
1244 PM EDT THU JUN 18 2015 A WARM FRONT WILL LIFT NORTHEAST INTO OUR REGION TODAY WITH AN ASSOCIATED AREA OF LOW PRESSURE. ON FRIDAY, A COLD FRONT WILL DIVE SOUTHEASTWARD INTO THE REGION FROM NEW ENGLAND AND THE GREAT LAKES.
1005 AM EDT THU JUN 18 2015 A STRONG U/L RIDGE PERSISTS ACROSS THE SOUTHEAST U.
A WEAK COLD FRONT CURRENTLY CENTERED OVER NW OREGON AND WESTERN WASHINGTON WILL SLOWLY MOVE INLAND OVERNIGHT. TEMPERATURES WILL BE AROUND 10 DEGREES COLDER ON FRIDAY WITH THE COLD FRONTAL PASSAGE. WEAK COLD FRONTAL PASSAGE LATE TONIGHT IN SE OREGON AND EARLY FRIDAY MORNING IN SW IDAHO.
753 AM EDT THU JUN 18 2015 AVIATION A FEW SHOWERS AND STORMS ARE POSSIBLE TODAY AS A COLD FRONT MOVES THROUGH.
WINDS QUICKLY TRANSITION TO MORE EASTERLY ABOVE 3000 FEET THROUGH THE REST OF THE TROPOSPHERE AS DEEP LAYER RIDGING REMAINS CENTERED JUST TO OUR NORTH. BIASED IN THE LOWER LEVELS. ATMOSPHERE REMAINS RELATIVELY STABLE WITH RIDGING ALOFT AND SUBSEQUENTLY WARM TEMPERATURES. WITH LATE DAY COLLISION OVER LAKE COUNTY LEADING TO THE HIGHEST PRECIP CHANCES WELL INLAND. WITH HEAT INDICES IN THE LOW 100S EXPECTED.
1119 AM EDT THU JUN 18 2015 UPDATE A FEW SHOWERS AND STORMS ARE POSSIBLE TODAY AS A COLD FRONT MOVES THROUGH.
619 AM CDT THU JUN 18 2015 A COLD FRONT IS PUSHING EAST THROUGH THE CWA AS OF EARLY THIS MORNING.
UPPER HEIGHTS WILL GRADUALLY RELAX OVER THE NEXT FEW DAYS AS THE REMNANTS OF TROPICAL CYCLONE BILL TRACKS TO THE NORTH OF ALABAMA.
1029 AM EDT THU JUN 18 2015 HIGH PRESSURE WILL RETREAT WELL OFFSHORE TODAY ALLOWING A COLD FRONT TO APPROACH THE AREA.
1113 AM EDT THU JUN 18 2015 HIGH PRESSURE OVER THE AREA WILL MOVE OFFSHORE TODAY. A COLD FRONT WILL MOVE OUT OF QUEBEC AND CROSS MAINE TONIGHT. ANOTHER AREA OF HIGH PRESSURE WILL FOLLOW FOR FRIDAY. LOW PRESSURE EAST OF JAMES BAY WILL LIFT NORTHEAST TODAY WITH ITS ASSOCIATED COLD FRONT TO SWEEP ACROSS QUEBEC. ONSHORE FLOW WILL KEEP TEMPS MUCH COOLER ALONG THE COAST. BUT NW AREAS MAY BRIEFLY DROP INTO THE 40S TOWARD DAYBREAK AS THE SHOWERS MOVE OUT AND A COOLER/DRIER AIR MASS BEGINS TO OVERSPREAD THE AREA IN THE WAKE OF THE COLD FRONT. THE COLD FRONT WILL QUICKLY MOVE OFFSHORE FRIDAY MORNING. HIGH PRESSURE WILL FOLLOW IN THE FRONT'S WAKE, USHERING IN A COOLER AND DRIER AIRMASS.
LOOK FOR HIGHS IN THE 90S TO AROUND 100 DEGREES ACROSS THE VALLEY THESE NEXT TWO DAYS, WHICH IS A BIT COOLER THAN YESTERDAY.
HIGH PRESSURE RIDGING IS NUDGING TO THE EAST. WITH CONTINUED MAINLY DRY CONDITIONS CLOSER TO THE COAST CLOSER TO THE RIDGE.
545 AM MDT THU JUN 18 2015 12Z TAF CYCLE UPPER HIGH BUILDING FROM WEST TO EAST OVER NEW MEXICO NEXT 24 HRS. TO DEVELOP AFT 18Z OVER THE HIGHER TERRAIN. VERY WARM TEMPERATURES AND A GRADUAL DRYING TREND IS IN STORE THROUGH THE WEEKEND AS AN UPPER LEVEL RIDGE MEANDERS EASTWARD OVER NEW MEXICO. AN INVERTED TROUGH WILL SNEAK UNDER THE RIDGE ACROSS MEXICO. THE RIDGE WILL CONTINUE TO BUILD EASTWARD OVER NM. WITH THE RIDGE BUILDING OVER NM. MODELS ARE AGREEING THAT AN INVERTED TROUGH ORGANIZING OVER TEXAS WILL SLIDE WESTWARD UNDER THE HIGH OVER NORTHERN MEXICO. BUT IT WILL DEPEND HOW FAR NORTH THE INVERTED TROUGH WILL BE. IT LOOKS LIKE THE UPPER HIGH WILL SPLIT. DEPENDING ON WHERE THE HIGH CENTERS SET UP.
HIGH PRESSURE ALOFT WILL BRING HOT WEATHER FOR INLAND AREAS THROUGH THE WEEKEND. A SHALLOW MARINE LAYER WILL KEEP COASTAL AREAS COOLER.
800 AM EDT THU JUN 18 2015 HIGH PRESSURE WILL RETREAT WELL OFFSHORE TODAY ALLOWING A COLD FRONT TO APPROACH THE AREA.
THE UPPER RIDGE THAT HAS BEEN POSITION OVER THE SOUTHEASTERN U.
STACKED HIGH PRESSURE HAS SHIFTED EASTWARD, ALLOWING LOW LEVEL WINDS TO SHIFT TO THE SOUTHWEST.
SURFACE RIDGING EXTENDING ACROSS FLORIDA WILL MAINTAIN LIGHT TO GENTLE EAST TO SOUTHEAST BREEZES ACROSS KEYS WATERS.
UPPER RIDGE IS TRYING TO HOLD ON OVER THE EASTERN TN VALLEY LATE THIS MORNING. WHILE AT THE SAME TIME A COLD FRONT MOVES TOWARD THE OHIO VALLEY AND THE CENTRAL CENTER OF THE REMNANTS OF BILL MOVE NORTHEAST FROM OKLAHOMA TOWARD MISSOURI AND ARKANSAS. THESE SYSTEMS WILL FLATTEN THE RIDGE AND ALLOW LOW LEVEL MOISTURE TO INCREASE TODAY.
913 PM CDT SUN JUN 14 2015 LATEST REGIONAL RADAR SHOWS SHOWERS DWINDLING ACROSS CENTRAL NORTH DAKOTA AHEAD OF A SECONDARY COLD FRONT. THE COLD FRONT WILL CONTINUE TO SAG TO THE SOUTHERN BORDER BETWEEN 06Z-09Z WITH NO SIGNIFICANT WEATHER. QUASI-ZONAL/CYCLONIC FLOW ALOFT AS A DEEP AREA OF LOW PRESSURE MOVES EAST ACROSS CENTRAL CANADA.
EXPECT A FEW MORE SHOWERS AND THUNDERSTORMS TO DEVELOP MONDAY AFTERNOON OVER THE HIGHER TERRAIN.
A GRADUAL WARMING TREND IS EXPECTED FOR INLAND AREAS THROUGH EARLY THIS WEEK AS HIGH PRESSURE BUILDS IN FROM THE SOUTHWEST. SLIGHT COOLING IS POSSIBLE LATER THIS WEEK AS A BROAD TROUGH OF LOW PRESSURE DEVELOPS TO THE NORTH. WATER VAPOR IMAGERY CONTINUE TO SHOW A RIDGE OF HIGH PRESSURE BUILDING IN OVER THE REGION. STRONG HIGH PRESSURE IS CRUSHING THE MARINE LAYER THIS AFTERNOON AND KEEPING A JUNE GLOOM PATTERN AT THE BEACHES AND IMMEDIATE COAST TODAY. A STRONG MARINE INVERSION WILL LIKELY REMAIN IN PLACE FOR THE PERIOD AS HIGH PRESSURE STRENGTHENS.
813 PM EDT SUN JUN 14 2015 A WARM FRONT WILL SLOWLY MOVE NORTHEAST INTO OUR AREA THIS AFTERNOON.
MAIN SWATH OF ONSHORE FLOW HAS SHIFTED TO THE WEST TODAY WITH ONLY VERY ISOLATED SHOWERS/TSTORMS EXPECTED ACROSS CENTRAL ALABAMA THIS AFTERNOON AS LOW/MID LEVEL RIDGING HAS STARTED TO BUILD IN FROM THE EAST. GUIDANCE CONTINUES TO INDICATE THE DEVELOPMENT OF A LOW PRESSURE SYSTEM OFF THE YUCATAN NEAR THE BAY OF CAMPECHE WITH MORE AGREEMENT BETWEEN POTENTIAL SOLUTIONS OF TRACK/STRENGTH.
CANNOT RULE OUT ISOLATED SHOWERS OR STORMS THROUGH THE OVERNIGHT HOURS AS THE WEAK COLD FRONT PRESSES THROUGH.
THE MID LVL RIDGE NEAR THE SC COAST WILL NOT MOVE OVERNIGHT WITH LOW LVL RIDGE NUDGING JUST A BUT FURTHER SOUTH OFFSHORE. SUPPRESSION FROM THE NEARBY RIDGE WILL KEEP MOST AREAS DRY BUT ESE LOW LVL FLOW OFF GRAND BAHAMA ISLAND MAY ALLOW ISOLATED SHOWERS TO MOVE TOWARD MARTIN COUNTY THROUGH THE OVERNIGHT HOURS SO ADDED A LOW/SLIGHT SHOWER CHANCE THERE. HIGH PRESSURE RIDGE JUST TO OUR NORTH WILL CONTINUE EAST/SOUTHEAST FLOW. THE RIDGE AXIS IS FORECAST TO NUDGE CLOSER TO EAST CENTRAL FL TONIGHT AND KNOCK WINDS DOWN TO AROUND 5 KNOTS NORTH AND NEAR 10 KNOTS SOUTH NEAR SUNRISE. THE LOW THIS MORNING WAS 80 AT KMLB AND 79 AT KVRB.
A WARMER AND SUBSTANTIALLY DRIER AIR MASS WILL FOLLOW MIDWEEK.
849 PM EDT SUN JUN 14 2015 MID LEVEL RIDGE OVER THE REGION AND DRY MID LEVELS RESTRAINED ANY CONVECTION THAT DID DEVELOP THIS EVENING WITH THE LAST SHOWER OVER INTERIOR SOUTHEAST GEORGIA DYING RIGHT AROUND SUNSET.
MODELS IN GENERAL AGREEMENT ON TAKING THE BROAD AREA OF LOW PRESSURE INTO THE NORTHWEST GULF BY LATE MONDAY. UPDATED TO INCREASE WIND GUSTS NEAR THE COAST AND TO DECREASE POPS TNITE AS UPPER LEVEL RIDGING HAS TAKEN HOLD AROUND THE PEREPHERY OF THE BROAD AREA OF LOW PRESSURE IN THE SOUTHERN GULF.
THE RIDGE KEPT MOST OF THE CONVECTION AT BAY TODAY. SKIES WILL BE MOSTLY CLEAR WITH LOW TEMPS BOTTOMING OUT IN THE LOW 70S IN MOST LOCATIONS. HIGH PRESSURE CONTINUES TO EXTEND INTO CENTRAL ALABAMA FROM THE EAST.
UPPER HIGH IS KEEPING PCPN WEST OF THE TN VALLEY. A LARGE AREA OF HIGH PRESSURE OVER THE REGION WILL PROVIDE VFR CONDITIONS FOR BOTH TAF SITES THRU THE FCST PERIOD. LOOKS LIKE THE WESTERN EDGE OF THE RIDGE IS OVER OR NEAR THE CWA WITH SUNNY SKIES IN THE EAST AND THEN PARTLY TO MOSTLY CLOUDY IN THE WEST WITH AFTERNOON CUMULUS AND SOME CIRRUS OCCURRING.
946 PM EDT SUN JUN 14 2015 HIGH PRESSURE WILL MOVE EAST OF THE REGION TONIGHT INTO MONDAY.
639 PM CDT SUN JUN 14 2015 A SLOW MOVING UPPER TROUGH EXTENDING FROM THE SOUTHERN PLAINS INTO WEST TEXAS WILL CONTINUE TO BRING CHANCES FOR SHOWERS AND STORMS TO NORTH TEXAS.
809 PM EDT SUN JUN 14 2015 A STRONG AREA OF DEEP HIGH PRESSURE WILL REMAIN ACROSS THE FORECAST AREA THROUGH MUCH OF THIS WEEK. THE HIGH WILL GRADUALLY WEAKEN TOWARD THE END OF THE WEEK. NOT MUCH DEVIATION FROM THE PREVIOUS GUIDANCE WAS NOTED WRT THE STRENGTH AND PLACEMENT OF THE HIGH CENTER AND LOCATION OF LLVL MOIST FLUX. MODEL SOUNDINGS SHOW STRONG SUBSIDENCE AND MLVL WARM AIR PREVENTING MUCH OF A CONVECTIVE THREAT OUTSIDE THE HIGHER TERRAIN EACH AFTERNOON.
UPDATED TO INCREASE WIND GUSTS NEAR THE COAST AND TO DECREASE POPS TNITE AS UPPER LEVEL RIDGING HAS TAKEN HOLD AROUND THE PEREPHERY OF THE BROAD AREA OF LOW PRESSURE IN THE SOUTHERN GULF.
639 PM CDT SUN JUN 14 2015 A FEW SHOWERS AND THUNDERSTORMS WERE OCCURRING ALONG AND BEHIND A COLD FRONT THAT STRETCHED FROM JUST EAST OF ELY INTO SOUTHWEST MINNESOTA AS OF 23Z. A RIDGE WILL BEGIN TO BUILD INTO THE FORECAST AREA LATE TONIGHT CLEARING OUT THE SKIES WEST TO EAST BEGINNING MONDAY MORNING.
1211 AM EDT MON JUN 15 2015 HIGH PRESSURE WILL BUILD DOWN FROM QUEBEC TODAY. THIS HIGH WILL MOVE EAST OF THE REGION TONIGHT INTO MONDAY.
HIGH PRESSURE BUILDING OVER THE SOUTHWEST WILL BRING A PROLONGED PERIOD OF HOT WEATHER TO VALLEY. WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO THE MARINE LAYER SHRANK 600 FEET IN THE PAST 24 HOURS AS A HIGH PRESSURE RIDGE CENTERED OVER THE CENTRAL PACIFIC BEGAN NOSING INTO THE SOUTHWEST. VALLEY TEMPS WERE 10 DEGREES HIGHER TODAY DUE TO THE ABSENCE OF THE COOLER MARINE AIR WITH MAX TEMPERATURES AROUND 90 DEGREES.
LOOKS LIKE THE WESTERN EDGE OF THE RIDGE IS OVER OR NEAR THE CWA WITH SUNNY SKIES IN THE EAST AND THEN PARTLY TO MOSTLY CLOUDY IN THE WEST WITH AFTERNOON CUMULUS AND SOME CIRRUS OCCURRING.
AS SURFACE AND UPPER RIDGE KEEP CONVECTION TO A MINIMUM ACROSS THE MID STATE.
/ISSUED 414 PM CDT SUN JUN 14 2015/ THE PERSISTENT SYNOPTIC PATTERN REMAINS WITH A SUBTROPICAL HIGH CENTER LOCKED IN OVER THE SOUTHEAST CONUS AND GENERAL TROUGHING OVER THE WEST GULF. THE RIDGE WILL CONTINUE TO EXPAND A BIT MORE TO THE WEST AND HELP TO SHIFT THE DEEP MOISTURE CHANNEL AND GREATER CONVECTIVE PRECIPITATION COVERAGE FARTHER WEST. TROPICS/LONG RANGE UPDATE: CONFIDENCE IS INCREASING THAT THE ARKLAMISS WILL BE UNDER SUFFICIENT INFLUENCE FROM THE SOUTHEAST CONUS ANTICYCLONE TO AVOID THE HEAVY RAINFALL POTENTIAL ASSOCIATED WITH THE DEVELOPING TROPICAL SYSTEM THAT IS EXPECTED TO MOVE ACROSS EASTERN TX INTO THE ARKLATEX REGION - BUT WILL STILL NEED TO MONITOR FOR HEAVY RAIN AND PERHAPS SEVERE WEATHER THREATS IN LOCATIONS WEST OF THE MS RIVER UNTIL IT BECOMES MORE APPARENT THAT THE CONSENSUS FORECAST SOLUTION WILL VERIFY.
THE RIDGE KEPT MOST OF THE CONVECTION AT BAY TODAY. SKIES WILL BE MOSTLY CLEAR WITH LOW TEMPS BOTTOMING OUT IN THE LOW 70S IN MOST LOCATIONS. HIGH PRESSURE WILL REMAIN ACROSS THE AREA.
ANOTHER MUGGY NIGHT IN STORE HERE IN MIDDLE TENNESSEE WITH OVERNIGHT LOWS IN THE LOWER 70S WITH A FEW MID 70S POSSIBLE IN HEAT ISLAND AREAS. SURFACE AND UPPER RIDGE REMAINS IN PLACE WITH PLENTY OF SUBSIDENCE ACROSS OUR AREA KEEPING RAIN CHANCES LOW NEXT 24 HOURS.
WITH A MID-LEVEL RIDGE CENTERED IN THE SOUTHEASTERN UNITED STATES. KEPT THE LOWS AROUND 70 TONIGHT. THE MID-LEVEL RIDGE AND SURFACE BOUNDARY ARE LIKELY TO NUDGE SLIGHTLY TO THE SOUTH. THE NORTHWEST CWA MAY BE SLIGHTLY COOLER ON MONDAY. WITH THE WHOLE FORECAST AREA EXPECTED TO REMAIN THE LOWER 70S. UPPER LEVEL RIDGE CENTERED OVER THE SOUTHEAST U.
1102 PM EDT SUN JUN 14 2015 A WAVE OF LOW PRESSURE WILL TRACK ALONG A SHARP FRONTAL BOUNDARY OVERNIGHT BRINGING SCATTERED TO NUMEROUS SHOWERS AND A CHANCE OF THUNDERSTORMS. THEN ANOTHER WAVE OF LOW PRESSURE WILL TRACK ACROSS THE REGION MONDAY NIGHT TO BRING MORE WIDESPREAD SHOWERS AND THUNDERSTORMS.
TEMPERATURES ARE IN THE LOWER 80S. AN ATLANTIC RIDGE OF HIGH PRESSURE WILL EXTEND ACROSS NORTH FLORIDA OVERNIGHT. A BROAD AREA OF LOW PRESSURE WILL BE CENTERED OVER THE SOUTH CENTRAL GULF OF MEXICO TONIGHT.
1013 AM EST SAT JAN 30 2016 A HIGH PRESSURE SYSTEM, WILL PUSH OFF THE EAST COAST TODAY.
A COLD FRONT CONTINUES TO SAG SOUTHEASTWARD THROUGH THE SOUTHERN HIGHLANDS EARLY THIS MORNING.
AND LIKELY STAY ABOVE FREEZING TONIGHT FOR THE SOUTHERLY 1/2 OF THE FORECAST AREA. CAN/T RULE OUT A SHORT PERIOD OF FREEZING RAIN THOUGH. WITH A SLIGHTLY WARMER ATMOSPHERE EXPECTED. UPPER LEVEL TROUGH STILL SLATED TO SWING OUT OF THE DESERT SOUTHWEST. SUMMERY FETCH OF 850 MB MOISTURE TRANSPORT RUNNING NORTHWARD ALONG THE SYSTEM/S COLD FRONT. DEPENDING ON WHERE THE LOW ENDS UP. SFC GRADIENT TIGHTENING UP AS THE LOW STRENGTHENS/MOVES IN.
THE LOW LEVEL MOISTURE WILL TAKE AWHILE TO REACH THE COASTAL PLAINS BUT SHOULD SEE SOME SCATTERED STRATOCU BY THE AFTERNOON. BAND OF CIRRUS WILL MOVE ACROSS THE REGION TODAY IN ADVANCE OF THE MID/UPPER LEVEL SHORT WAVE TROUGH OVER NORTHWEST MEXICO THAT MOVES SOUTHEAST INTO DEEP SOUTH TEXAS TONIGHT. THE LOW LEVEL FLOW WEAKENS OVERNIGHT AS THE LOW LEVEL JET MOVES TO THE EAST.
FRONTAL BOUNDARY LINGERING NEAR THE SW ID/NV BORDER THIS MORNING WILL GRADUALLY SHIFT SOUTH AS BROAD UPPER TROUGH MOVES INTO THE PAC NW. DRIER AIR SHOULD LIMIT FOG DEVELOPMENT SUNDAY MORNING WITH SHOWER ACTIVITY ON SUNDAY FOCUSING OVER THE HIGHER TERRAIN AS VALLEYS ARE CAPPED.
/ISSUED 322 AM EST SAT JAN 30 2016/ HIGH PRESSURE WILL BRING DRY CONDITIONS TO SOUTH FLORIDA.
600 AM EST SAT JAN 30 2016 THE AVIATION SECTION HAS BEEN UPDATED BELOW A COLD FRONT IS EXPECTED TO PASS THROUGH THE AREA SUNDAY NIGHT.
The next system will move into central and southern California later tonight and Sunday with NorCal only catching a glancing blow with another upswing in showers possible Sunday as the upper trough moves overhead.
1044 AM EST SAT JAN 30 2016 HIGH PRESSURE MOVES ACROSS SOUTHERN VIRGINIA AND EASTERN NORTH CAROLINA TODAY. THE HIGH REMAINS OFF THE COAST SUNDAY.
A MIX OF RAIN AND SNOW REMAINS PRUDENT IN THE FORECAST IN PLACES WHERE WE DO HAVE POPS GIVEN THERMAL PROFILES NEAR THE FREEZING MARK. EARLY THIS MORNING A WEAK UPPER LEVEL SHORT WAVE TROUGH WAS PUSHING ACROSS EASTERN MONTANA. FREEZING RAIN. SLEET AND SNOW IS POSSIBLE WITH TEMPERATURES ALOFT WITHIN ONE OR TWO DEGREES OF FREEZING AND SURFACE TEMPERATURES ALSO HOVERING AROUND FREEZING. THE 00 UTC GLOBAL MODEL SUITE REMAINED IN GOOD AGREEMENT WITH ITS DEPICTION OF NORTHWEST FLOW ALOFT DEVELOPING ACROSS THE REGION AS A MEAN 500-MB TROUGH BECOMES ESTABLISHED OVER THE CENTRAL UNITED STATES THIS WEEK.
A WEAK LONG WAVE TROUGH OFFSHORE WILL EJECT A FEW MORE SHORT WAVES OUR WAY WITH THE BULK OF THE ENERGY STREAMING INTO NORTHERN CALIFORNIA. THE LONG WAVE TROUGH WILL MOVE INLAND SUNDAY AND THE TRAILING LONG WAVE RIDGE WILL BUILD INTO THE AREA.
MODERATE TO BREEZY SURFACE WINDS FROM THE SOUTH-SOUTHEAST WILL PREVAIL DUE TO HIGH PRESSURE OVER THE GULF OF MEXICO INTERACTING WITH LOW PRESSURE OVER THE CENTRAL PLAINS. DESPITE THE FACT THAT A WEAK 500 MB TROUGH WILL TRANSITION THROUGH THE BRO CWFA ONSUNDAY. AND A WEAK COLD FRONT AT THE SURFACE WILL PUSH INTO THE REGION ON THE SAME DAY BEFORE BECOMING STATIONARY. WARM SOUTHERLY WINDS OVER THE COOLER NEARSHORE WATERS OF THE LAGUNA MADRE AND GULF OF MEXICO MAY GENERATE SEA FOG THROUGHOUT THE NEXT 36 HOURS.
WITH THE COOLER SURFACE TEMPERATURES REDUCING THE LOW LEVEL LAPSE RATES IN THE ONSHORE FLOW SHOWERS CONTINUE TO TAPER OFF THIS MORNING. A WEAK TROUGH MOVES THROUGH THIS AFTERNOON IN THE ZONAL FLOW PATTERN AND WESTERLY 700 MB FLOW AS SURFACE TEMPERATURES INCREASE. WITH 500 MB TEMPS AROUND -35 C AND 850 MB TEMPS NEAR -5 C AND WEAKENING ONSHORE FLOW WILL BRING BELOW FREEZING TEMPERATURES TO THE WEST SIDE VALLEYS AND TEMPERATURES TO THE TENS AND SINGLE DIGITS EAST OF THE CASCADES BY SUNDAY MORNING. ANOTHER WEAK TROUGH BRINGS INCREASED SHOWER ACTIVITY WITH GENERALLY LIGHT PRECIP AMOUNTS.
541 AM EST SAT JAN 30 2016 A PRESSURE RIDGE WILL MOVE OFF THE SOUTHEAST COAST TODAY.
1013 AM EST SAT JAN 30 2016 A PRESSURE RIDGE WILL MOVE OFF THE SOUTHEAST COAST TODAY.
626 AM EST SAT JAN 30 2016 HIGH PRESSURE MOVES ACROSS THE LOCAL AREA TODAY.
528 AM CST SAT JAN 30 2016 FOR 12Z TAFS /ISSUED 342 AM CST SAT JAN 30 2016/ THE 09Z SURFACE ANALYSIS INDICATED THAT A LARGE AREA OF HIGH PRESSURE WAS CENTERED TO THE EAST OF THE FORECAST AREA ALONG THE SOUTHERN APPALACHIANS. A WEAK WARM FRONT WAS JUST TO THE SOUTH OF THE FORECAST AREA AND IS EXPECTED TO PUSH THROUGH THE AREA THIS MORNING. WE CAN EXPECT ANOTHER NICE DAY TODAY WITH MUCH WARMER TEMPS EXPECTED WITH A STRENGTHENING SOUTHERLY FLOW BEHIND THE WARM FRONT AND PLENTY OF SUNSHINE EXPECTED. HAVE FOLLOWED CLOSELY TO THE SLIGHTLY WARMER GFS TEMP GUIDANCE FOR THIS AFTERNOONS HIGHS. THE RIDGE AXIS WILL ONLY SLOWLY GIVE WAY THROUGH SUNDAY WITH ANOTHER UNSEASONABLY WARM DAY EXPECTED.
553 AM CST SAT JAN 30 2016 HIGH PRESSURE WILL SLIDE OFF TO THE EAST WITH SOUTHERLY WINDS INCREASING IN RESPONSE. HIGH PRESSURE IS LOCATED OVER FLORIDA AND IS EXPECTED TO MOVE EAST THROUGH THE WEEKEND.
947 AM EST SAT JAN 30 2016 THE NEAR TERM SECTION HAS BEEN UPDATED BELOW A COLD FRONT IS EXPECTED TO PASS THROUGH THE AREA SUNDAY NIGHT.
641 AM EST SAT JAN 30 2016 A HIGH PRESSURE SYSTEM, WILL PUSH OFF THE EAST COAST TODAY.
406 AM MST SAT JAN 30 2016 UPPER FLOW WILL BE ZONAL THROUGH SUNDAY NIGHT AHEAD OF A TROUGH MOVING INTO NEVADA.
DEEP PACIFIC CYCLONE SPINNING NR THE ALEUTIANS WL GENERATE INCREASED RIDGING ALONG THE WEST COAST THE NEXT COUPLE DAYS. THAT IN TURN WL CAUSE THE FLAT DOWNSTREAM FLOW OVER THE CONUS TO SPLIT AND BUCKLE AS A STG UPR TROF FORMS OVER THE DESERT SW.
0930 AM EST SAT JAN 30 2016 THE AVIATION SECTION HAS BEEN UPDATED BELOW A COLD FRONT IS EXPECTED TO PASS THROUGH THE AREA SUNDAY NIGHT.
856 AM EST SAT JAN 30 2016 WARMER WEATHER IS EXPECTED UNTIL A STRONG COLD FRONT PASSES MIDWEEK. WITH EVENTUAL BROAD TROFG RESULTING OVR THE ERN HALF OF THE CONUS.
658 AM EST SAT JAN 30 2016 HIGH PRESSURE MOVES ACROSS NEW ENGLAND TODAY AND OFFSHORE INTO THE ATLANTIC TONIGHT. A WARM FRONT WILL LIFT NORTHEAST ACROSS THE REGION TONIGHT. EXPECT WARMER TEMPERATURES BEGINNING ON SUNDAY AND LASTING THROUGH MUCH OF THE COMING WEEK.
A LEESIDE SFC TROF OF LOW PRESSURE WILL ORGANIZE OVER ERN CO AND NERN NM AS UPPER LEVEL QUASI ZONAL FLOW PREVAILS. A COLD FRONT WILL TRACK ACROSS THE FCST AREA TONIGHT WITH COOLER TEMPS IN STORE ON SUNDAY.
WHICH ASIDE FROM A FEW NOTICEABLE FAST MOVING SHORT WAVE DISTURBANCES OVER THE LOWER MISSISSIPPI AND PECOS RIVER VALLEYS RESPECTIVELY. AT THE SURFACE AND IN THE LOWER TO MID LEVELS. A STATIONARY FRONT REMAINS WELL NORTH OF THE KEYS EXTENDING FROM LOW PRESSURE OVER MISSOURI TO OFF OF SOUTH CAROLINA. THE REGIONAL SCALE RIDGE NEAR TAMPA WILL SLIDE SOUTHEAST TO ACROSS THE FLORIDA PENINSULA DURING THE DAY. THE LIGHTER WINDS OUT OF THE EAST WILL ONLY ALLOW FOR MINIMAL WARMER ADVECTION.
HIGH PRESSURE OVER THE AREA WILL MOVE EAST AND CONSOLIDATE WITH A SEPARATE HIGH OFF THE CAROLINA COAST THIS AFTERNOON AND PUSH FARTHER SEAWARD. TEMPERATURES WILL REBOUND INTO THE LOWER 70S EXCEPT UPPER 60S RIGHT ALONG THE VOLUSIA/BREVARD COAST. HIGH PRESSURE RIDGE ALONG THE EASTERN SEABOARD HAS BEEN MOVING EAST AND WILL SHIFT OFFSHORE THIS AFTERNOON.
443 AM MST SAT JAN 30 2016 CURRENTLY PRECIPITATION IS NOT AS WIDESPREAD AS THE MODELS SUGGEST AND TEMPERATURES ARE SEVERAL DEGREES WARMER THAN MODEL INITIALIZATION. MODELS ARE STILL SHOWING A SURGE OF COLD AIR TODAY AS AN UPPER LEVEL TROUGH SAGS SOUTHWARD THROUGH THE DAY. SHOULD TEMPERATURES END UP BEING 2 TO 4 DEGREES WARMER THAN THE FORECAST. BY THIS EVENING TEMPERATURES WILL DROP BELOW FREEZING ACROSS THE AREA. UPSLOPE LOW LEVEL FLOW DEVELOPING ALONG THE CHEYENNE RIDGE ALONG WITH UNSTABLE LOW LEVELS AND UPPER JET SUPPORT IS FAVORABLE FOR THE DEVELOPMENT OF INTENSE LOCALIZED SNOW BANDS.
517 AM EST SAT JAN 30 2016 HIGH PRESSURE WILL SLIDE EAST ACROSS PENNSYLVANIA THIS MORNING BEFORE SHIFTING OFF THE EAST COAST LATE TODAY AND SUNDAY.
541 AM CST SAT JAN 30 2016 SKIES WILL BE MAINLY CLEAR TODAY WITH HIGH PRESSURE OVER THE REGION. SURFACE FLOW TURNS SOUTHERLY TODAY ALLOWING ONLY SLIGHTLY WARMER TEMPERATURES WITH HIGHS 10 TO 15 DEGREES ABOVE NORMAL. A WEAK MID LEVEL IMPULSE MOVING ACROSS THE PLAINS MIXES A DRYLINE EAST ACROSS MUCH OF OUR AREA ON SUNDAY LEADING TO LOWER DEWPOINTS AND AN EVEN WARMER AIRMASS AS FLOW BECOMES DOWNSLOPE.
CHATTANOOGA AIRPORT, TN 64 45 63 53 / 0 0 10 40 KNOXVILLE MCGHEE TYSON AIRPORT, TN 60 43 61 49 / 0 0 0 30 OAK RIDGE, TN 60 44 61 49 / 0 0 10 30 TRI CITIES AIRPORT, TN 57 35 59 42 / 0 0 0 20.
456 AM CST SAT JAN 30 2016 LEE-SIDE LOW PRESSURE OVER EASTERN COLORADO WILL HELP MAINTAIN A TIGHT SURFACE PRESSURE GRADIENT OVER THE AREA TODAY.
553 AM CST SAT JAN 30 2016 WEAK SURFACE WARM FRONT JUST OFF TO OUR SOUTHWEST WILL MOVE THROUGH THE AREA BEFORE DAYBREAK. HIGHS TODAY AND SUNDAY IN THE LOW TO MIDDLE 60S. LOW MOVES EAST ON SUNDAY WITH ATTENDANT COLD FRONT BRINGING A GOOD CHANCE FOR RAIN HERE IN THE MID STATE SUNDAY NIGHT.
613 AM EST SAT JAN 30 2016 A PRESSURE RIDGE WILL MOVE OFF THE SOUTHEAST COAST TODAY.
AN UPPER LEVEL TROUGH OVER THE PACIFIC NORTHWEST WILL KEEP THE AIR MASS COOL AND UNSTABLE WITH A CHANCE OF SHOWERS THROUGH THE WEEKEND. A RIDGE MAY BRING DRIER WEATHER BY MIDWEEK. AN UPPER LEVEL TROUGH WILL KEEP THE AIR MASS COOL AND UNSTABLE TODAY. THE JET WILL SHIFT FARTHER SOUTH INTO CA ON SUNDAY WITH A WEAK TROUGH STILL OVER THE PAC NW.
129 PM EDT WED APR 13 2016 HIGH PRESSURE WILL BUILD OVER THE REGION AND TAKE CHARGE. THAT SUBSIDENCE INVERSION IS A RESULT OF HIGH PRESSURE OVER THE CENTRAL GREAT LAKES. THE CENTER OF THIS HIGH WILL HEAD ACROSS SOUTHEASTERN ONTARIO INTO QUEBEC TODAY. BUT WARMER DAYS ARE AHEAD. FROM SPRAWLING HIGH PRESSURE CENTERED OVER QUEBEC.
ISSUED BY NATIONAL WEATHER SERVICE GRAY ME 247 PM EDT WED APR 13 2016 HIGH PRESSURE AT THE SURFACE WILL REMAIN IN PLACE OVER THE REGION TONIGHT. AS RIDGING ALOFT OVER THE GREAT LAKES BEGINS TO MOVE TOWARD THE EAST.
330 PM CDT WED APR 13 2016 Still looks like tonight will be dry as rain from the upper low currently over Oklahoma will stay just south of the CWA.
ISSUED BY NATIONAL WEATHER SERVICE GRAY ME 254 PM EDT WED APR 13 2016 HIGH PRESSURE AT THE SURFACE WILL REMAIN IN PLACE OVER THE REGION TONIGHT. AS RIDGING ALOFT OVER THE GREAT LAKES BEGINS TO MOVE TOWARD THE EAST.
324 PM CDT WED APR 13 2016 RELATIVELY QUIET IN THE SHORT TERM TODAY WITH AN INVERTED TROUGH EXTENDING UP FROM SOUTHERN SOUTH DAKOTA EAST INTO CENTRAL MINNESOTA. THIS INVERTED TROUGH WILL DEVELOP INTO A WARM FRONT AND PUSH NORTH TONIGHT AND THURSDAY. WITH WARMER AND MORE HUMID AIR PUSHING INTO THE AREA FROM THE SOUTH. LOW TEMPERATURES TONIGHT WILL DIP INTO THE LOW TO MID 30S NEAR AND NORTH OF THE FRONT. FOR MOST OF THE AREA SOUTH OF THE BOUNDARY IT WILL BE WARMER AND DRIER WITH HIGHS IN SOME PLACES RISING INTO THE LOW 70S. WITH LOW PRESSURE TO OUR WEST THE LAKE BREEZE WILL PRODUCE MUCH COOLER AND BREEZIER CONDITIONS NEAR LAKE SUPERIOR.
417 PM EDT WED APR 13 2016 THE AVIATION SECTION HAS BEEN UPDATED BELOW HIGH PRESSURE WILL KEEP QUIET WEATHER OVER CENTRAL INDIANA THROUGH THE WEEKEND. HIGH PRESSURE OVER THE AREA WILL KEEP SKIES CLEAR AND WINDS LIGHT TONIGHT. THIS WILL ALLOW GOOD RADIATIONAL COOLING ONCE AGAIN AND EXPECT TO SEE LOWS DROP TO THE LOWER 30S NORTHEAST TO AROUND 40 IN THE SOUTH.
124 PM EDT WED APR 13 2016 HIGH PRESSURE WILL TRAVEL FROM THE GREAT LAKES TO THE ATLANTIC COAST BY THE WEEKEND. DRY WEATHER WILL PERSIST AS THE HIGH MOVES SLOWLY EAST. THE CIRCULATION AROUND THE HIGH WILL ALSO BRING WARMER TEMPERATURES.
BUT ENOUGH MOISTURE REMAINS WITHIN THE LOWER LEVELS TO MAINTAIN A CHANCE FOR A FEW SHOWERS. /ISSUED 1009 AM CDT WED APR 13 2016/ UPPER LEVEL LOW SPINNING OVER SOUTHERN OKLAHOMA ACCORDING TO LATEST WATER VAPOR IMAGERY. MAIN UPPER LEVEL DISTURBANCE ROTATING AROUND THIS LOW IS PUSHING OFF TO THE EAST OF THE FORECAST AREA. THE SHORT WAVE THAT IS RESPONSIBLE WILL PUSH EAST OF THE AREA DURING THE MIDDLE OF THE DAY WITH RAIN CHANCES DECREASING FROM WEST TO EAST, HOWEVER SCATTERED SHOWERS AND STORM CAN STILL BE EXPECTED OVER LOWER ACADIANA THROUGH THURSDAY AS THE COLD FRONT SLOWLY MOVES EAST AND MOISTURE CONTINUES TO WRAP INTO A SLOW MOVING UPPER LOW OVER AR.