Aikyam-Lab/Synoptic-Bench huggingface dataset:
A HIGH PRESSURE RIDGE WILL BRING DRY WEATHER TO MOST AREAS TONIGHT AND FRIDAY. LOW PRESSURE IN THE UPPER ATMOSPHERE ALONG THE NORTHERN GULF COAST WILL MOVE TOWARDS THE OHIO VALLEY AND WEAKEN OVER THE WEAKEN WHICH IN TURN WILL BRING CHANCE OF LIGHT SHOWERS OVER SOUTHERN SECTIONS BY LATE FRIDAY AND MOST AREAS OVER THE WEEKEND.
WE HAVE SEEN THE UPPER LOW TO OUR SW GO FROM AINSWORTH NEB TO NEAR LINCOLN NEB. DID BOOST LOWS INTO THE LOW 60S FOR MOST OF THE MN PORTION OF THE CWA.
LOW PRESSURE OFF THE SOUTHEAST COAST WILL DRIFT ONSHORE THEN WEAKEN.
AN UPPER LOW CENTERED OVER THE CENTRAL FLORIDA PANHANDLE WOBBLES NORTHWARD THE FIRST 24HRS OF THE FORECAST. NORTHERLY WINDS SET UP TONIGHT AS THE UPPER LOW SHIFTS BRINGING COOLER NORTHERLY AIR TO THE REGION. TEMPS TONIGHT EXPECTED TO BE IN THE LOW TO MID 60S. WILL RESULT HIGH TEMPS RANGING FROM THE LOW 80S NORTHEAST TO UPPER 80S SOUTHWEST.
/ISSUED 259 PM CDT THU SEP 24 2015/ UPPER LOW MOVING SWD OVER ERN NM AND THE WRN SOUTH PLAINS. BY 06Z EXPECT THE LOW TO BE FAR ENOUGH SOUTH AND WEAKENED ENOUGH FOR MOST IF NOT ALL PRECIP TO HAVE ENDED. AS THIS UPPER LEVEL LOW THAT HAS BROUGHT PERIODS OF RAIN FINALLY DISSIPATES AND KICKS OUT. A POSITIVELY SLANTED RIDGE IS BUILDING IN OVER THE WESTERN U.
With mostly sunny to partly cloudy skies this afternoon, temperatures have risen quite nicely into the lower to mid 80s across the region. An upper level low currently centered over the panhandle of Florida will travel to the northwest and into the Lower Ohio Valley by tomorrow evening. Lows Friday night should be a couple of degrees warmer than tonight.
517 PM MDT THU SEP 24 2015 CUT OFF LOW OVER NORTH CENTRAL NEBRASKA DIVES SOUTH AGAIN ON FRIDAY AS IT GETS CAUGHT IN THE FLOW OVER THE RIDGE BUILDING IN THE ROCKIES.
1141 PM CDT THU SEP 24 2015 LOW PRESSURE ACROSS EASTERN NEBRASKA WILL CONTINUE TO INFLUENCE PRECIPITATION TRENDS THROUGH THE OVERNIGHT. THE UPPER LOW WILL STILL BE MIGRATING SOUTH DUE TO THE FLOW OF THE BUILDING RIDGE TO THE WEST AND WILL SLIP SW IA.
DESPITE THIS SOMEWHAT FAVORABLE UPPER LEVEL SITUATION THE LOW LEVEL FLOW WILL REMAIN FROM THE NORTHEAST TO EAST.
DRY CONDITIONS AND RELATIVELY MILD TEMPERATURES WILL CONTINUE AS HIGH PRESSURE REMAINS THE DOMINANT FEATURE. UPPER LEVEL CLOUD COVERAGE WILL INCREASE OVERNIGHT AS A WEAK UPPER LOW OVER THE SOUTHEASTERN STATES SLOWLY MIGRATES NORTH TOWARDS THE FORECAST AREA. THE AFOREMENTIONED UPPER LOW WILL SLOWLY DRIFT NORTH ON FRIDAY. MAINTAINING UPPER LEVEL CLOUDINESS OVER THE AREA AND RESULTING IN DAYTIME TEMPERATURES SEVERAL DEGREES COOLER THAN OBSERVED TODAY UNDER CLOUDS AND COOLER TEMPERATURES ALOFT. LAYER MOISTURE IS PROGGED TO SURGE UPWARD THIS WEEKEND AS THAT UPPER LOW SLOWLY MEANDERS NORTHWARD.
WV SATELLITE IMAGERY THIS EVENING CLEARLY PRESENTS AN UPPER LEVEL LOW PUSHING SLOWLY NORTHWESTWARD INTO WESTERN GEORGIA. DRY AIR HAS ENTRAINED INTO THE UPPER LOW ACROSS SOUTHERN GEORGIA AND SOUTHEAST ALABAMA BASED ON WV SATELLITE. AS THE UPPER LOW CONTINUES PUSHING NORTHWESTWARD. WHILE MOST SPOTS EAST OF I-65 WILL LIKELY OBSERVE THE LOWER 70S. WARMER TEMPERATURES ARE STILL EXPECTED FARTHER WEST WHERE A FEW PEEKS OF SUN AREN'T OUT OF THE QUESTION. RAIN WILL REMAIN IN THE FORECAST EACH PERIOD AS THE UPPER LOW STAYS CLOSE TO THE REGION.
WINDS AT THE SURFACE WILL BE LIGHT OUT OF THE EAST DUE TO HIGH PRESSURE OVER HUDSON BAY.
Temperatures will drop into the mid 60s across most of the area, although a few locations should dip into the lower 60s by sunrise. Northerly flow aloft will result in slightly cooler temperatures in the 850-700 mb layer, suggesting a slight cooling at the surface.
901 PM MDT THU SEP 24 2015 WATER VAPOR SATELLITE SHOWS UPPER LOW CONTINUING TO SPIN IN PLACE OVER NORTHEASTERN NE. LEE TROF DEEPENS OVER EASTERN MT-WY WITH SOUTHERLY WINDS INCREASING OVERNIGHT ACROSS NORTHEASTERN WY. THIS EVENING THROUGH FRIDAY NIGHT CURRENT SURFACE ANALYSIS SHOWS SLOW MOVING AREA OF LOW PRESSURE OVER FAR NORTHEAST NEB. WITH RIDGE OVER THE ROCKIES REGION. TEMPS RANGE FROM THE UPPER 60S OVER SOUTH CENTRAL SD TO THE LOW TO MID 80S OVER THE NORTHEAST WY PLAINS. THE RIDGE OVER THE ROCKIES WILL BUILD EAST INTO THE HIGH PLAINS OVER THE NEXT COUPLE OF DAYS.
THIS EVENING THROUGH FRIDAY NIGHT CURRENT SURFACE ANALYSIS SHOWS SLOW MOVING AREA OF LOW PRESSURE OVER FAR NORTHEAST NEB. WITH RIDGE OVER THE ROCKIES REGION. TEMPS RANGE FROM THE UPPER 60S OVER SOUTH CENTRAL SD TO THE LOW TO MID 80S OVER THE NORTHEAST WY PLAINS. THE RIDGE OVER THE ROCKIES WILL BUILD EAST INTO THE HIGH PLAINS OVER THE NEXT COUPLE OF DAYS.
A RIDGE OF HIGH PRESSURE EXTENDS FROM MONTANA SOUTHWARD TO ARIZONA AND SOUTHERN CALIFORNIA WHILE A TROUGH OF LOW PRESSURE REMAINS OVER THE EASTERN PACIFIC FROM THE GULF OF ALASKA SOUTHWARD TO NEAR 30N/140W.
DESPITE A BROAD TROUGHING PATTERN ALOFT AND A WEAK UPPER DISTURBANCE DROPPING SSE OUT OF NEW MEXICO THIS EVENING. WATER VAPOR ANALYSIS THIS AFTERNOON SHOWS MID AND UPPER LEVEL LOW NEAR THE NEW MEXICO TEXAS BORDER DROPPING SOUTH. THE MID AND UPPER LEVEL LOW OPENS AND DAMPEN AS IT MOVES SOUTH INTO THE REGION ON FRIDAY.
943 PM CDT THU SEP 24 2015 UPPER LEVEL LOW PRESSURE SYSTEM OVER NORTHEAST NE FORECAST TO SLOWLY DRIFT SOUTH TONIGHT WHILE UPPER LEVEL RIDGE IN THE WEST SHIFTS OVER THE DAKOTAS. UPPER LEVEL RIDGE OVER SASK/MT/WY WILL SHIFT AND BUILD A BIT OVER MAN AND THE DAKOTAS BY MORNING.
AFTERNOON TEMPERATURES ALONG THE COAST WERE REPORTED TO BE BETWEEN 75 AND 85 DEGREES WITH INLAND TEMPERATURES RUNNING IN THE LOW TO UPPER 90S AND EVEN A FEW LOW 100S WERE REPORTED.
INSTABILITY HAS REMAINED ON THE LOW SIDE TODAY. THE LOW WILL RESULT IN NUMEROUS SHOWERS THROUGH THE EVENING HOURS. THE LOW GRADUALLY BEGINS TO FILL OVERNIGHT AND DRIFT SOUTH. WITH SPOTTY SHOWERS LINGERING YET THROUGH FRIDAY AS THE LOW FINALLY BEGINS TO OPEN AND SHIFT SOUTHWEST OF THE REGION BY FRIDAY AFTERNOON/NIGHT.
THE UPPER LOW OVER SOUTHERN GEORGIA WILL SHIFT SLOWLY NORTHWEST TONIGHT AND FRIDAY. THE MODELS SHOW AN AREA OF MORE CONCENTRATED SHOWERS DEVELOPING ON THE NORTH SIDE OF THE UPPER LOW CENTER AFTER MIDNIGHT. THE SHOWER ACTIVITY WILL SHIFT NORTHWARD INTO TENNESSEE FRIDAY AFTERNOON AS THE UPPER LOW CENTER MOVES INTO NORTH ALABAMA. THE UPPER LOW WILL BE JUST EXITING NORTHWEST ALABAMA ON ITS RETROGRADE PATH. THE MODEL SOLUTIONS ARE IN FAIRLY GOOD AGREEMENT THAT THE WEAKNESS/LOW/TROUGH WILL BE CENTERED JUST WEST OF THE AREA MUCH OF THE PERIOD WITH HEIGHTS RISING FROM THE EAST LATE IN THE PERIOD.
701 PM CDT THU SEP 24 2015 UPPER LEVEL RIDGE OVER SASK/MT/WY WILL SHIFT AND BUILD A BIT OVER MAN AND THE DAKOTAS BY MORNING.
WEAK TROUGHING WITH A GENERAL E/NE FLOW WILL CONTINUE ACROSS THE AREA THROUGH THE WEEKEND AS RAIN CHANCES INCREASE.
FORECAST MODELS HAVE REALLY STRUGGLED WITH THE SLOW PROGRESSION OF THE UPPER LOW OVER THE SOUTHERN PLAINS CURRENTLY. A WEAK COLD FRONT IS EXPECTED TO DROP ACROSS THE PANHANDLES ON FRIDAY. HIGH TEMPERATURES ARE STILL EXPECTED TO REACH INTO THE LOWER AND MID 80S.
ADDITIONAL MOISTURE WILL GRADUALLY MOVE INTO THE REGION AS A MID-UPPER LEVEL LOW SINKS FARTHER SOUTH. RISING INTO THE LOW TO MID 90S IN THE AFTERNOON.
High pressure extending from Ontario Canada to the mid-Mississippi River Valley will provide dry and cool conditions for another night. Correlating that towards lows tonight, we could see a few colder spots drop into the lower 50s, but most areas should only cool into the mid 50s tonight. Our western counties will see a coverage of high clouds associated with a low pressure system in the Upper Midwest, which could keep their low temps in the upper 50s. The first is a potent looking upper low over the central Plains, while the second is a disturbance lifting northwest from the Gulf coast. Strong model agreement exists that the Plains disturbance will get no closer to forecast area than it currently is, as it dives south and eventually southwest on the back side of the mean upper ridge.
1051 PM CDT THU SEP 24 2015 UPPER LEVEL LOW PRESSURE SLOWLY MOVING THROUGH THE AREA AND IS FORECAST TO WOBBLE SLIGHTLY SOUTHWARD INTO THE EVENING. JET MAX ROUNDING THE BASE OF THE LOW PRESSURE AT 19Z THIS AFTERNOON ACROSS SOUTHEAST NEBRASKA WHICH SHOULD BE THE BEGINNING OF THIS SHIFT SOUTHWARD.
1017 PM EDT THU SEP 24 2015 HIGH PRESSURE WILL BRING QUIET WEATHER TO THE REGION THROUGH FRIDAY.
801 PM EDT THU SEP 24 2015 HIGH PRESSURE WILL BRING QUIET WEATHER TO THE REGION THROUGH FRIDAY.
647 PM CDT THU SEP 24 2015 HIGH PRESSURE WAS FIRMLY ENTRENCHED ACROSS THE AREA TODAY. HIGH PRESSURE ACROSS THE AREA WILL BE THE DOMINATE WEATHER FEATURE. IT APPEARS THAT THIS HIGH CI WILL PROBABLY STICK AROUND THROUGH THE OVERNIGHT. AS SUCH WENT WITH THE HIGHER END OF GUIDANCE TONIGHT FOR TEMPS ACROSS THE AREA. TEMPERATURES FOR TOMORROW WILL BE COOLER THAN TODAY AS AN EASTERLY WIND WILL DRIVE COOLER AIR INTO THE AREA. HIGH PRESSURE REMAINS IN PLACE THROUGH THE WEEKEND. AFTER THIS A VORT MAX MOVES ACROSS CANADA AND BRINGS WITH A COLD FRONT INTO THE AREA. HOWEVER HIGH PRESSURE IS PROG TO BUILD IN QUICK BEHIND THIS FRONT.
FREEZING LEVEL WAS AT 14. FRIDAY LOOKS TO BE ON THE DRY SIDE AS AN UPPER LOW CENTERED NORTHEAST OF THE AREA DRAWS IN DRIER AIR FROM THE NORTH.
UPPER LEVEL LOW PRESSURE SYSTEM OVER NORTHEAST NE FORECAST TO SLOWLY DRIFT SOUTH TONIGHT WHILE UPPER LEVEL RIDGE IN THE WEST SHIFTS OVER THE DAKOTAS. UPPER LEVEL RIDGE OVER SASK/MT/WY WILL SHIFT AND BUILD A BIT OVER MAN AND THE DAKOTAS BY MORNING.
A WEAK UPPER LEVEL LOW EVIDENT IN WATER VAPOR IMAGERY IS LOCATED OVER SOUTHERN AL/GA. ALL MODELS HAVE THIS LOW SLOWLY LIFTING NORTHWESTWARD TONIGHT THROUGH FRIDAY MORNING AND SHOULD BE OVER THE REGION BY FRIDAY EVENING. DUE TO THIS DRY LAYER AND THE GENERAL WEAK NATURE OF THE SHOWERS IT MAY TAKE AWHILE BEFORE THE LOWER LEVELS OF THE ATMOSPHERE SATURATE.
IN A VIRTUALLY NON-EXISTENT WIND FLOW REGIME SITUATED BETWEEN THE WELL-DEFINED CLOSED LOW SPINNING OVER SW GA AND ATTENDENT DRY AIR WEDGE TO ITS W AS FAR W AS THE MS RIVER. AND A WEAK CYCLONIC CIRCULATION ASSOCIATED WITH WEAK UPPER TROUGHING DRIFTING SE INTO N TX/ERN OK. DID TWEAK SKY CONDITIONS UPWARDS FOR FRIDAY AS WELL WITH THE CLOUD COVER EXPECTED TO GRADUALLY THIN AS A DEEPER NRLY FLOW IS ESTABLISHED AHEAD OF THE WEAK TROUGH TO THE W. AND THE CLOSED LOW TO THE E AS IT NUDGES N TOWARDS THE TN VALLEY.
ANALYSIS SHOWS A TROUGH AXIS ALONG HIGHWAY 65. DEWPOINTS WERE STILL IN THE LOWER 60S.
HIGHS TOMORROW WILL BE MUCH COOLER THAN SEEN RECENTLY DUE TO CLOUD COVER AND PRECIP. WEAK TROUGHING IN THE UPPER LEVELS WILL REMAIN CAMPED OUT TO OUR NW. KCSV WILL LIKELY BE IMPACTED FIRST AS THE UPPER LOW SLIDES EAST.
MODELS SHOW LARGE SCALE ASCENT ASSOCIATED WITH UPPER TROUGH OVER THE SOUTHEAST UNITED STATES LIFTING ACROSS THE SOUTHERN APPALACHIANS OVERNIGHT AND FRIDAY MORNING. CHATTANOOGA AIRPORT, TN 64 71 63 78 / 90 100 60 50 KNOXVILLE MCGHEE TYSON AIRPORT, TN 62 71 62 77 / 70 90 70 50 OAK RIDGE, TN 62 69 62 77 / 60 90 70 50 TRI CITIES AIRPORT, TN 59 71 61 72 / 70 100 80 50.
714 PM EDT THU SEP 24 2015 HIGH PRESSURE WILL BRING QUIET WEATHER TO THE REGION THROUGH FRIDAY.
A complex vort max over the central plains is still forecast to retrograde with time, moving southwestward along the eastern edge of an upper ridge axis.
A RIDGE OF HIGH PRESSURE WILL BRING DRY WEATHER AND WARM DAYS WITH COOLER NIGHTS AND MORNINGS. A HIGH PRESSURE RIDGE WILL MOVE SOUTH ACROSS ARIZONA OVER THE NEXT SEVERAL DAYS WITH DRY AND STABLE WEATHER CONDITIONS EXPECTED TO CONTINUE FOR THE FORESEEABLE FUTURE. THE DRY FALL WEATHER REGIME IS UPON US EXPECT WARM TEMPERATURES DURING THE DAY FOLLOWED BY COOLER NIGHTS AND MORNINGS.
WATER VAPOR SATELLITE TRENDS THIS AFTERNOON DEPICT AN UPPER LEVEL LOW JUST OFF THE NORTHWEST FLORIDA GULF COAST WHILE ANOTHER LOW IS LOCATED OVER NORTHEAST NEBRASKA.
AS THE LOW MOVES FURTHER NORTHWEST THE ONSHORE FLOW OVER SE GA AND NE FL WILL BECOME MORE NORTH/NORTHWEST. WITH THE PROXIMITY OF THE LOW.
Early afternoon temperatures are nearing the 90 degree mark in the valley and should top out in the low to mid 90s. A few degrees of warming will take place on Friday as high pressure continues to build with light northerly flow. Ridge will begin a slight weakening for the start of the weekend with increasing onshore flow.
1116 PM CDT THU SEP 24 2015 HIGH PRESSURE WAS FIRMLY ENTRENCHED ACROSS THE AREA TODAY. HIGH PRESSURE ACROSS THE AREA WILL BE THE DOMINATE WEATHER FEATURE. IT APPEARS THAT THIS HIGH CI WILL PROBABLY STICK AROUND THROUGH THE OVERNIGHT. AS SUCH WENT WITH THE HIGHER END OF GUIDANCE TONIGHT FOR TEMPS ACROSS THE AREA. TEMPERATURES FOR TOMORROW WILL BE COOLER THAN TODAY AS AN EASTERLY WIND WILL DRIVE COOLER AIR INTO THE AREA. HIGH PRESSURE REMAINS IN PLACE THROUGH THE WEEKEND. AFTER THIS A VORT MAX MOVES ACROSS CANADA AND BRINGS WITH A COLD FRONT INTO THE AREA. HOWEVER HIGH PRESSURE IS PROG TO BUILD IN QUICK BEHIND THIS FRONT.
636 PM CDT THU SEP 24 2015 LOW PRESSURE ACROSS EASTERN NEBRASKA WILL CONTINUE TO INFLUENCE PRECIPITATION TRENDS THROUGH THE OVERNIGHT. THE UPPER LOW WILL STILL BE MIGRATING SOUTH DUE TO THE FLOW OF THE BUILDING RIDGE TO THE WEST AND WILL SLIP SW IA.
THE MID AND UPPER LAYER TROUGH WHICH HAS BEEN PARKED IN THE EASTERN GULF THE PAST FEW DAYS SEEMS TO BE SOMEWHAT LESS INFLUENTIAL OVER THE CWA AS THE TROUGH BASE HAS FLATTENED SOME AND THE UPPER LEVELS APPEAR TO BE LESS DIFFLUENT. THE GFS AND NAM MOS GUIDANCE ARE SHOWING MORE CLIMATOLOGICAL POPS IN THE LOW CHANCE RANGE.
727 PM EDT THU SEP 24 2015 HIGH PRESSURE DOMINATES THE AREA.
127 PM EDT SUN OCT 25 2015 AVIATION AN AREA OF HIGH PRESSURE CENTERED OVER IOWA WILL BUILD INTO THE GREAT LAKES REGION TODAY AND TONIGHT.
The best chances for some developing areas or more widespread frost after 09 UTC will be across out central Kansas counties where temperatures may be cooler due to more efficient radiational cooling. The model guidance for the afternoon is not exactly all in agreement, with the NAM and the GFS slightly cooler in the low to mid 60s across the far southwest counties in the afternoon, as opposed to the slightly warmer GFS/ECMWF MOS, however, overall mid 60s are likely even with increasing clouds.
650 PM EDT SUN OCT 25 2015 A COLD FRONT WILL MOVE SOUTHWARD ACROSS THE AREA OVERNIGHT.
ONE SHORT WAVE TROUGH CURRENTLY COMING OUT OF NORTH DAKOTA INTO NORTHERN MINNESOTA WAS GENERATING SOME RADAR RETURNS AHEAD OF IT. WATER VAPOR SATELLITE SHOWS THE NEXT SHORT WAVE TROUGH IS OVER SOUTHERN ALBERTA. THIS WAVE DOES LOOK TO PUSH A WEAK COLD FRONT INTO THE AREA WITH A BAND OF WEAK FRONTOGENESIS IN THE 1000-700 MB LAYER DEVELOPING THIS AFTERNOON AND THEN REMAINS IN PLACE THROUGH MONDAY FROM CENTRAL MINNESOTA INTO NORTHERN WISCONSIN.
MOISTURE AHEAD OF AN UPPER LEVEL LOW PRESSURE TROF TO THE WEST IS MOVING ACROSS THE ROCKIES AND BRINGING MID TO UPPER LEVEL CLOUDS TO THE REGION. WEAK HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH THIS AFTERNOON ALTHOUGH A LOW PRESSURE DISTURBANCE IS APPROACHING FROM THE WEST.
549 PM CDT SUN OCT 25 2015 High pressure over the upper Midwest is pushing down dry low level air into the area while a storm along the western Gulf coast is pushing high clouds northward into much of southern Missouri.
153 PM CDT SUN OCT 25 2015 LIGHT FROST IS POSSIBLE TONIGHT WHEN THE AIRMASS RIDGE MOVES OVER NORTHWEST OKLAHOMA WITH CLEAR SKIES AND LIGHT WINDS.
LOWS TONIGHT WILL BE A LITTLE COOLER THAN LAST NIGHT. RANGING FROM THE LOWER 40S NORTHWEST WHERE SKIES ARE ALREADY CLEARING TO THE MID 50S ACROSS THE SOUTHEAST. SOME LOW RAIN CHANCES /20 PERCENT POPS/ WILL CONTINUE INTO MONDAY ALONG AND EAST OF A PARIS TO CENTERVILLE LINE AS AN UPPER LEVEL LOW CURRENTLY OVER FAR SOUTHEAST TEXAS MOVES NORTHEAST INTO LOUISIANA.
THE LOW PRESSURE CONTINUES TO ANCHOR JUST WEST OF ASTORIA WITH THE OCCLUDED FRONT HAVING MOVED THROUGH ROSEBURG AND MEDFORD. AN UPPER LEVEL RIDGE WILL BUILD INTO THE COASTAL WATERS ON MONDAY. THE ATMOSPHERE WILL TREND WARMER AND DRIER ON MONDAY BUT THIS WILL ALSO MEAN THAT MONDAY NIGHT'S LOW TEMPERATURE WILL QUITE CHILLY EAST OF THE CASCADES WITH LOWS IN THE 20S.
AN AREA OF LOW PRESSURE IS STEADILY WORKING ITS WAY UP THE TEXAS COASTLINE. DRIER AIR FILTERING INTO THIS REGION IN THE WAKE OF THE LOW.
GIVEN THE SLOW MOVEMENT OF THE BROAD LOW PRESSURE AREA FROM THE NORTHWEST GULF INTO LOUISIANA. QUITE A RARE SIGHT TO OBSERVE A 998 MB NON-TROPICAL LOW PRESSURE AREA IN THE NORTHWEST GULF OF MEXICO (SOUTHEAST OF GALVESTON). A BAND OF LIGHT RAIN CURRENTLY AFFECTING THE EASTERN PORTIONS OF THE CWA IS ASSOCIATED WITH THE COMMA HEAD PORTION OF THIS LOW. ALSO LOWERED TEMPS FOR THE EASTERN AREAS DUE TO THE SLOWER EROSION OF THE CLOUDS AND A COOLER THAN EXPECTED BOUNDARY LYR. OF WORTHY NOTE IS THAT SVRL OF THE HIGHER OIL PLATFORMS HAVE RECENTLY GUSTED TO 51-53 KNOTS WITHIN THE PAST HOUR.
143 PM EDT SUN OCT 25 2015 A COLD FRONT WILL CROSS THE AREA TONIGHT FROM NORTH CAROLINA.
THROUGH THE AFTERNOON THE HIGHEST CHANCES WILL REMAIN WEST OF I-65.
AN UPPER TROUGH JUST OFF THE PACIFIC NORTHWEST COAST WILL BRING WIDESPREAD RAIN TO WESTERN WASHINGTON TONIGHT AND MONDAY MORNING AS IT MOVES INLAND.
WHILE AN APPROACHING LOW AMPLITUDE UA RIDGE TO OUR WEST WILL AID IN MAINTAINING DRY CONDITIONS WITH PLENTY OF SUNSHINE ACROSS THE SOUTH PLAINS AND ROLLING PLAINS. THE UA RIDGE WILL PROGRESS ACROSS THE SOUTHERN PLAINS THIS EVENING INTO TONIGHT. HOWEVER IT IS NOT OUT OF THE QUESTION FOR A FEW LOCALES TO FLIRT WITH THE FREEZING MARK. BOTH THE UA RIDGE AND ITS SFC COUNTERPART WILL SLOWLY COMMENCE TO EXIT THE REGION TO THE EAST BY LATE MORNING/EARLY AFTN. THE HIGH CLOUDS WILL BE EXITING THE REGION.
259 PM EDT SUN OCT 25 2015 UPPER AIR PATTERN CONSISTS OF A BROAD 500 MB TROUGH ACROSS THE GREAT LAKES REGION AND A TROUGH ON THE WEST COAST AND ANOTHER TROUGH OVER THE SOUTHERN PLAINS. UPPER LEVEL TROUGHING REMAINS OVER THE UPPER GREAT LAKES THIS FORECAST PERIOD. WILL SEE MAINLY RAIN DURING THE DAY THU SWITCHING BACK TO A MIX OF RAIN AND SNOW /SNOW MAINLY OVER THE HIGHER TERRAIN/ THU NIGHT INTO FRI MORNING.
102 PM EDT SUN OCT 25 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW DRY AND COOLER CONDITIONS WILL PREVAIL TODAY AND TOMORROW AS HIGH PRESSURE STRENGTHENS OVER CENTRAL INDIANA.
Weak mid/upper ridging along with a dry airmass will bring mainly clear skies with large diurnal temperature ranges (where the term "long thermometer" comes from) the next couple of days.
306 PM CDT SUN OCT 25 2015 AN ELONGATED AREA OF HIGH PRESSURE COVERED THE FORECAST AREA AT 1930Z. A WEAK SFC TROF WAS IMPINGING ON THE HIGH NEAR THE SOUTHERN EDGE OF THE MN FORECAST AREA. THE SFC TROF IS FORECAST TO LIFT NWD AND EXTEND INTO NW WI BY 06Z MONDAY. THIS TROF ALONG WITH THE FGEN REMAINING OVER THE SOUTHERN TIER OF ZONES WILL GET AN ASSIST FROM THE RIGHT REAR QUADRANT OF UPPER LEVEL JET TO DEVELOP AND EXPAND SHOWERS. THE AREA OF RAIN WILL PERCOLATE OVER NW WI ON MONDAY AND DISSIPATE FROM WEST TO EAST AS DRIER AIR FROM HIGH PRESSURE WORKS ITS WAY IN FROM THE WEST.
352 PM EDT SUN OCT 25 2015 HIGH PRESSURE RIDGE INTO THE REGION FROM ONTARIO TONIGHT. THE HIGH WILL BE OVER NY STATE BY MONDAY AFTERNOON ALLOWING LOW PRESSURE TO DRIFT TOWARD THE REGION FROM THE GULF COAST.
THE GOOD THING IS IF YOU LOOK AT THE RADAR THE HEAVY RAIN HAS BEEN FAIRLY PROGRESSIVE AND ALSO THERE IS A DRY SLOT FORMING AND MOVING ONSHORE NEAR THE CENTER OF THE LOW.
VISIBLE SATELLITE SHOWS MID/HIGH LEVEL CLOUD COVER INCREASING ACROSS THE CWA FROM WEST TO EAST AS MOISTURE INCREASES IN ADVANCE OF A POTENT UPPER TROUGH TRANSLATING INTO THE WESTERN US ATTM. WHERE WE KEPT THE HIGHEST POPS THROUGH MONDAY AFTERNOON. LEE TROUGHING WILL EVENTUALLY DEVELOP AT THE SURFACE WITH SOUTH-TO-SOUTHEAST FLOW GIVING WAY TO INCREASING LLVL MOISTURE AFTER 18Z. TEMPERATURES ON MONDAY SHOULD BE 10-15 DEGREES F COOLER THAN TODAY GIVEN MORE WIDESPREAD CLOUDS/PRECIPITATION BENEATH THE TROUGH.
417 PM EDT SUN OCT 25 2015 A COLD FRONT WILL MOVE SOUTHWARD ACROSS THE AREA OVERNIGHT.
TODAY THROUGH MONDAY NIGHT LOW AMPLITUDE TROUGH CONTINUES TO AFFECT THE WRN CONUS WHILE WEAK RIDGING DEVELOP ACROSS THE NRN ROCKIES. CLOUDS WILL CONTINUE TO AFFECT THE AREA TODAY AS THE WEAK UPPER RIDGE APPROACHES THE REGION AHEAD OF THE NEXT TROUGH/UPPER LOW PUSHING INTO THE NW PAC COAST. CHANCES FOR SHOWERS WILL INCREASE THROUGH MON MRNG AS ISENTROPIC LIFT DEVELOPS AHEAD OF THE TROUGH. THIS WILL BRING SHOWERS TO THE CWA THROUGH THE DAY MON WITH THE HIGHEST POPS ACROSS NW SD.
349 PM EDT SUN OCT 25 2015 HIGH PRESSURE WILL BUILD FROM THE UPPER GREAT LAKES INTO OUR REGION TO START THE NEW WEEK.
TONIGHT THROUGH MONDAY A PACIFIC COLD FRONT AND LOW PRESSURE TROUGH WILL BRING CLOUDY RAIN BELOW 8500 AND SNOW ABOVE BECOMING MORE WIDESPREAD OVER THE MOUNTAINS AND SCATTERED IN THE WESTERN VALLEYS. WHILE BEING MORE ISOLATED IN THE LOWER ELEVATIONS EAST OF THE CONTINENTAL DIVIDE. WITH PERIODS OF SW RIDGING AND TROFFING AFFECTING THE FA THRU THE ENTIRE FCST PERIOD. GENERAL TROF OVR WY AT START OF PERIOD. NEARLY STATIONARY SFC FRONT USED AS FOCAL POINT FOR DEVELOPING LOW PRESSURE AND WEAK CYCLO/FRONTO-GENESIS ACROSS ERN WY AND THE HIGH/CNTRL PLAINS. WHILE ANOTHER EMBEDDED SW DIVES SWD INTO THE NRN PLAINS DOWN THE BACKSIDE OF THE MAIN TROF.
143 PM EDT SUN OCT 25 2015 HIGH PRESSURE WILL PROVIDE FOR DRY AND SEASONABLE CONDITIONS TODAY THROUGH MONDAY.
AND BEFORE CLOUDS WITH NEXT TROUGH ADVANCE IN. FOR MONDAY A MID LEVEL SHORT WAVE AHEAD OF THE LONG WAVE TROUGH. PROVIDES INSTABILITY AND LIFT TO THE SOUTHWEST WITH INCREASING CHANCES FOR STEADY LIGHT RAIN AND COOLER DAYTIME HIGH TEMPERATURES.
One more quiet day on Monday as high pressure pushes across the eastern Great Lakes by the end of the day with pleasant afternoon temperatures in the mid to possibly upper 60s.
456 PM EDT SUN OCT 25 2015 IN GENERAL THE HIGH RISK OF RIP CURRENTS ACROSS THE ATLANTIC COAST BEACHES THAT HAS PERSISTED THE LAST SEVERAL DAYS WILL LESSEN TONIGHT INTO THE EARLY PART OF THE WEEK.
HIGH PRESSURE OVER THE WESTERN GREAT LAKES WILL CONTINUE MOVING EAST TONIGHT AND MONDAY. TEMPS WILL LIKELY BE A FEW DEGREES COOLER BEHIND THIS LAKE BREEZE. TEMPS WILL WARM A FEW DEGREES MONDAY INTO THE LOWER/MID 60S BUT STILL COOLER NEAR THE LAKE WITH EASTERLY WINDS.
MOISTURE LEVELS WILL INCREASE ON THE BACKSIDE OF THE HIGH TONIGHT.
Brief MVFR CIGS may develop late tonight across NW and WC AR as low level moisture wraps back around a low pressure system across the TX coast. WC and NW AR into the first part of the work week as the upper low along the TX gulf coast lifts northeast and weakens.
322 PM EDT SUN OCT 25 2015 THE COLD FRONT HAS MOVED WELL SOUTHEAST OF KY. HOWEVER RAIN CHANCES WILL GRADUALLY INCREASE FROM SOUTH TO NORTH FROM LATE TONIGHT THROUGH MONDAY NIGHT AS ABUNDANT MOISTURE IS PULLED BACK NORTH ACROSS THE REGION IN ASSOCIATION WITH THE LOW PRESSURE SYSTEM NOW ALONG THE TEXAS GULF COAST. THIS WILL ALLOW TEMPERATURES TO FALL INTO THE LOWER 40S IN THE FAR NORTH. WHILE TEMPERATURES ONLY FALL TO THE LOWER 50S IN THE SOUTH. WITH HIGHS MOSTLY IN THE LOWER 60S ACROSS THE ENTIRE FORECAST AREA.
QUIET DRY WEATHER THROUGH MONDAY WILL GIVE WAY TO AN ACTIVE PATTERN WITH A STRONG LOW PRESSURE SYSTEM BRINGING RAIN AND ISOLATED THUNDERSTORMS TO THE AREA THROUGH MID WEEK.
1131 AM PDT SUN OCT 25 2015 There will be a good chance of rain tonight into Monday morning as a slow moving low pressure system spreads moisture into the Inland Northwest.
1001 AM PDT SUN OCT 25 2015 There will be a good chance of rain tonight into Monday morning as a slow moving low pressure system spreads moisture into the Inland Northwest.
323 PM EDT SUN OCT 25 2015 NORTHWEST FLOW WILL FOLLOW BEHIND A COLD FRONT EXITING SOUTHEASTERN PENNSYLVANIA THIS AFTERNOON.
358 PM EDT SUN OCT 25 2015 CLOUDS WILL DIMINISH WITH TIME LATER THIS AFTERNOON THROUGH TONIGHT AS HIGH PRESSURE BUILDS IN AND BRINGS FAIR WEATHER FOR THE BEGINNING OF THE WEEK.
NEAR TERM AND SHORT TERM SECTIONS HAVE BEEN UPDATED BELOW QUIET DRY WEATHER THROUGH MONDAY WILL GIVE WAY TO AN ACTIVE PATTERN WITH A STRONG LOW PRESSURE SYSTEM BRINGING RAIN AND ISOLATED THUNDERSTORMS TO THE AREA THROUGH MID WEEK.
401 PM MDT SUN OCT 25 2015 IN THE WARM SECTOR OF THE APPROACHING TROUGH. BUT A WET SNOW WITH NEAR FREEZING TEMPS EXPECTED OVER VAIL PASS.