Aikyam-Lab/Synoptic-Bench huggingface dataset:
THIS BOUNDARY IS SLOWLY SINKING SOUTH AS A SPRAWLING 1030+ MB HIGH PRESSURE CENTER WAS MOVING SOUTHEAST INTO THE NORTH-CENTRAL PLAINS. THE AFOREMENTIONED FRONTAL BOUNDARY WILL CONTINUE TO PUSH SOUTH BRINGING DRIER AIR AND SLIGHTLY COOLER TEMPERATURES INTO THE REGION. A STRONGER LOW PRESSURE IS PROGGED BY BOTH THE NAM AND ECMWF GIVEN THE STRONGER WAVE ALOFT.
TODAY AND TONIGHT MID LEVEL TROUGH NOW LIFTING THROUGH WISCONSIN WILL SWEEP ACROSS LOWER MICHIGAN THROUGH THE FIRST HALF OF TODAY.
AN AREA OF LOW PRESSURE LIFTING OUT OF CENTRAL NEVADA WILL LEAVE ENOUGH MOISTURE FOR SOME SHOWERS AND ISOLATED THUNDERSTORMS ACROSS THE SOUTHERN SIERRA AND GREAT BASIN TODAY AND WEDNESDAY.
DISTURBED UPPER LEVEL RIDGING WILL PREVAIL THIS AFTERNOON WITH A WEAK SURFACE PRESSURE PATTERN AHEAD OF AN APPROACHING FRONT.
UPPER LOW STRETCHED ACROSS THE GREAT BASIN WILL ELONGATE ACROSS SW IDAHO. A NOSE OF HIGH PRESSURE ALOFT WILL DIP SOUTH OVER IDAHO TONIGHT AND EARLY WEDNESDAY. LARGE TROUGH OFFSHORE WITH SERIES OF LOWS WILL CONTINUE TO AFFECT THE AREA.
WITH TEMPS CURRENTLY IN THE LOW/MID 60S ACROSS NORTH CENTRAL ILLINOIS. AFTER A COOL NIGHT IN THE LOW TO MID 40S. A ROBUST THERMAL TROUGH WILL REMAIN OVERHEAD TUE NGT.
1100 PM PDT MON MAY 18 2015 NEW AVIATION DISCUSSION SEVERAL LOW PRESSURE SYSTEMS MOVING THROUGH THE AREA THIS WEEK WILL RESULT IN SLIGHTLY BELOW NORMAL TEMPERATURES AND MOSTLY CLOUDY SKIES AT TIMES.
222 AM EDT TUE MAY 19 2015 IN THE WAKE OF A COLD FRONT. COOLER AND NOTICEABLY LESS HUMID AIR WILL POUR ACROSS OUR REGION ON TUESDAY. HIGH PRESSURE OVER THE NORTHERN PLAINS WILL THEN SLOWLY SETTLE SOUTHEAST ACROSS THE OHIO VALLEY FOR THE MUCH OF THE REST OF THE WEEK. THE COLD FRONT IS FOUND BETWEEN DETROIT AND BUFFALO AT 2AM. THE COLD FRONT WILL PUSH EAST ACROSS THE REGION THIS MORNING. THUS TEMPERATURES ACROSS WESTERN NY WILL RECOVER INTO THE LOW-MID 60S THIS MORNING. TEMPERATURES SHOULD BE ABLE TO RECOVER A LITTLE LONGER BEFORE THE COOLER AIR ARRIVES. THE FROST RISK LOOKS LIMITED FOR THE COLDEST SPOTS AS THERE WILL BE SOME GRADIENT AND THERE SHOULD BE A DECENT AMOUNT OF CLOUD COVER AS A TROUGH SWINGS THROUGH ALONG WITH SOME LAKE-ENHANCED CLOUD COVER.
A COLD FRONT THAT EXTENDS FROM BUFFALO NY SWWRD TO LITTLE ROCK AR HAS BECOME MORE DIFFUSE OVERNIGHT AS THE UPPER LEVEL SUPPORT AND DRIVING MECHANISM BEHIND THE FRONT HAS SHIFTED WELL EAST OF THE AREA.
631 AM EDT TUE MAY 19 2015 COLD FRONT PUSHES EAST THIS MORNING.
154 AM EDT TUE MAY 19 2015 HIGH PRESSURE KEEPING THE WEATHER MOSTLY QUIET ACROSS SOUTH FLORIDA, ESPECIALLY FOR THE ATLANTIC COAST. UPR AIR ANALYSIS SHOWS STRONG LOW AND MID LEVEL RIDGE JUST UP AND DOWN THE STATE WITH CWA ON THE SOUTH AND SE END OF THAT FEATURE. WATER VAPOR LOOP SHOWS SLIGHTLY DRIER AND MORE STABLE AIRMASS IMPINGING ON THE SE COAST OF FLORIDA FROM THE ATLANTIC ON THE SOUTHEASTERN PERYPHERY OF THE LOW AND MID LEVEL RIDGE. THERMODYNAMIC PROFILES AT LOW LEVELS ARE NOT IMPRESSIVE AT ALL IN ASSOCIATION WITH THE RIDGE WITH H9 BASED INVERSION PRESENT AND MID LEVELS WARMER THAN NORMAL. THE REAL CHANGE COMES WEDNESDAY AS A WEAK FRONTAL BOUNDARY ENTERS NORTHERN FLORIDA AND LOW AND MID LEVEL RIDGE WEAKENS CONSIDERABLY.
410 AM EDT TUE MAY 19 2015 HIGH PRESSURE IN THE NORTHERN PLAINS WILL BRING DRY CONDITIONS TODAY AND WEDNESDAY TO THE OHIO VALLEY.
Cold front is quite evident in IR satellite imagery, and extends from near CVG to SDF and on SW to Fort Campbell.
142 AM EDT TUE MAY 19 2015 SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE THROUGH THE OVERNIGHT HOURS AHEAD OF AN APPROACHING COLD FRONT. SHOWERS AND THUNDERSTORMS ARE EXPECTED TUESDAY WITH COLD FRONTAL PASSAGE.
THE LOW PORTION OF THE BLOCK IS OVER CALIFORNIA AND NEVADA.
129 AM EDT TUE MAY 19 2015 SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE THROUGH THE OVERNIGHT HOURS AHEAD OF AN APPROACHING COLD FRONT. SHOWERS AND THUNDERSTORMS ARE EXPECTED TUESDAY WITH COLD FRONTAL PASSAGE.
WIDESPREAD RAIN EVENT WILL CROSS THE CENTRAL PLAINS ASSOCIATED WITH AN UPPER LOW PRESSURE SYSTEM LIFTING THRU THE ROCKIES AND ONTO THE PLAINS. AND RAIN CHCS CONTINUE THRU THE NIGHT IN CONTINUED LIFT IN THE LFQ OF JET ROUNDING THE BASE OF THE TROUGH WHILE THE SYSTEM ITSELF CROSSES THE PLAINS EARLY WEDNESDAY. THE SYSTEM WEAKENS AS IT REACHES NEB WEDNESDAY MORNING AND PCPN CHCS DECREASE AS THE TROUGH AXIS PASSES.
THE SOUTHEAST CONUS RIDGE WILL BE SUPPRESSED/FLATTENED EARLY IN THE FORECAST PERIOD AS AN UPPER LEVEL TROUGH MOVING ACROSS THE GREAT LAKES REGION AND SOUTHEAST CANADA SHIFTS EASTWARD. THIS WILL ACT TO PUSH A WEAK COLD FRONT SOUTH INTO THE GULF COAST STATES LATE TODAY INTO WEDNESDAY. THIS BOUNDARY WILL INITIALLY LIKELY STALL OUT NORTH OF THE FORECAST AREA BEFORE GETTING A PUSH SOUTH TOWARD THE CENTRAL GULF COAST AT THE END OF THE WORK WEEK AS UPPER LEVEL TROUGH DEEPENS OVER THE NORTHEAST AND MID ATLANTIC REGION.
400 AM EDT TUE MAY 19 2015 MID/UPPER LEVEL RIDGE EXTENDS FROM THE NORTHEAST GULF NORTHEASTWARD ALONG THE EASTERN SEABOARD. WATER VAPOR IMAGERY FROM EARLY THIS MORNING SHOWED DRY AIR OVER THE BAHAMAS AND THE EASTERN HALF OF THE REGION ALONG THE SOUTHERN EDGE OF THE LOW/MID LEVEL RIDGE. HIGH PRESSURE RIDGE WAS IN CONTROL ACROSS THE REGION. WITH A COLD FRONT PUSHING INTO THE SOUTHEAST AND NEAR THE FLORIDA/GEORGIA BORDER BY THE EVENING. A WEAK FRONTAL BOUNDARY THEN ENTERS NORTHERN FLORIDA ON WEDNESDAY AND THE LOW/MID LEVEL RIDGE WILL WEAKEN.
THE ACTUAL COLD FRONT IS WELL TO OUR NW. COLD FRONT WILL HAVE CLEARED THOSE AREAS SO I DROPPED POPS THERE. WITH GFS MODEL/MOS A FEW DEGREES COOLER.
203 AM EDT TUE MAY 19 2015 A COLD FRONT WILL PUSH EAST ACROSS THE AREA TONIGHT. HIGH PRESSURE WILL BRING DRY CONDITIONS TUESDAY AND WEDNESDAY.
357 AM CDT TUE MAY 19 2015 MAIN CONCERN THROUGH THE MORNING WILL BE EVOLUTION OF THE LOW STATUS DECK THAT HAS PERSIST ACROSS MUCH OF NORTHERN AND CENTRAL IOWA OVERNIGHT. TEMPERATURES WILL CONTINUE TO REMAIN WELL BELOW NORMAL AS THE COOL CANADIAN AIRMASS ASSOCIATED WITH THE HIGH WILL BE ACROSS THE STATE DURING THE DAY. THIS WILL HELP SATURATE THE LOWER LEVELS BY AROUND 09Z.
652 AM EDT TUE MAY 19 2015 A COLD FRONT WILL MOVE ACROSS THE REGION TODAY. COOLER DRIER WEATHER WILL FOLLOW FOR THE REMAINDER OF THE WORK WEEK. IN CONJUNCTION WITH AN APPROACHING UPR-LVL TROUGH. IT WILL TURN MUCH COOLER TNT AND WED POST-FROPA. OWING TO WRAP-ARND MOISTURE WITH THE UPR TROUGH. AS SFC RIDGING BUILDS SEWD FROM S-CNTRL CANADA AND THE NRN LKS RGN.
THIS LOW LEVEL INVERSION WILL BREAK IN THE MORNING HOURS WITH DAYTIME HEATING HELPING MIX OUT THE LOW LAYER MOISTURE. LOW LEVEL INVERSION TO BREAK AND DAY TIME HEATING TO HELP MIX OUT THE LOW LAYER MOISTURE WITH SCT- BKN VFR CONDITOINS REDEVELOPING AFTER 14Z TUESDAY. A MODEST SOUTHWEST TO DOWNSTREAM OF MID LEVEL TROUGHING EDGING EAST FROM CALIFORNIA TOWARD THE GREAT BASIN AND FOUR CORNERS. WEAK H5 RIDGING WILL OCCUR OVER THE SOUTHERN PLAINS. AS THE MID LEVEL LOW PRESSURE MOVES NORTHEAST.
AND MOVED SOUTHWESTWARD THROUGH MAINLY THROUGH THE LOWER KEYS. FORECAST - THE SPLIT RIDGE ACROSS FLORIDA WILL KEEP A COL NEARBY THROUGH MUCH OF THE WEEK. A WEAK LOWER LEVEL RIDGE WILL BE CENTERED OVER THE GULF OF MEXICO TODAY INTO TONIGHT.
WITH EXCEPTIONS BEING THE NORMALLY COOLER ASOS/AWOS SITES AT KOBE/KFPR AT 64F/65F RESPECTIVELY. TODAY WILL BE A DAY OF TRANSITION AS THE STRONG MID TO UPPER LEVEL RIDGE THAT HAS BEEN ATOP FL THE LAST SEVERAL DAYS FINALLY BREAKS DOWN.
131 AM EDT TUE MAY 19 2015 WV IMAGERY AND RAP ANALYSIS INDICATED A MID/UPPER LEVEL TROUGH FROM NW ONTARIO INTO THE WRN GREAT LAKES WITH THE LOW CIRCULATION CENTER NEAR CYQT. A TROUGH EXTENDED THROUGH NRN LAKE SUPERIOR FROM LOW PRES E OF LAKE SUPERIOR. THIS IS DUE TO THE AREA LARGELY BEING BETWEEN AN UPPER TROUGH OVER EASTERN CANADA AND ANOTHER OVER THE SOUTHWESTERN CONUS. HIGH PRESSURE BUILDS INTO THE AREA ON TUESDAY NIGHT AND REMAINS INTO WEDNESDAY. THE DRY AIR ASSOCIATED WITH THE HIGH WILL DIMINISH ANY LINGERING CLOUDS OVER THE EASTERN CWA QUICKLY DURING THE EARLY EVENING HOURS. HAVE FOLLOWED THE LOWER END OF GUIDANCE (WITH PWAT VALUES ONLY AROUND 0. A WEAK COLD FRONT DROPS SOUTH FROM ONTARIO WEDNESDAY NIGHT AND WITH THE LACK OF MOISTURE ONLY SHOWED A PERIOD OF PARTLY CLOUDY SKIES AS IT MOVES THROUGH.
CONDITIONS TODAY WILL BE SIMILAR TO YESTERDAY AS BROAD RIDGING SUPPRESSING DEVELOPMENT DURING THE AFTERNOON.
234 AM PDT TUE MAY 19 2015 LOW PRESSURE ALOFT WILL REMAIN OVER CALIFORNIA AND NEVADA THROUGH THE END OF THE WORK WEEK, BRINGING BELOW AVERAGE TEMPERATURES AND ROUNDS OF SHOWERS AND THUNDERSTORMS, MAINLY IN THE AFTERNOONS AND EVENINGS. TODAY APPEARS TO BE THE LOWEST END CHANCES FOR SHOWERS AND THUNDERSTORMS OVER THE UPCOMING DAYS DUE TO LACK OF APPRECIABLE FORCING. ANOTHER DISTURBANCE ROTATES INTO THE LARGE SCALE TROUGH ON WEDNESDAY WITH THE BEST FORCING PRESENT ACROSS NORTHWEST NEVADA.
307 AM CDT TUE MAY 19 2015 PRETTY QUIET NIGHT ACROSS MIDDLE TENNESSEE TONIGHT AHEAD OF THE APPROACHING COLD FRONT. UPPER TROUGH OVER THE MIDWEST/GREAT LAKES AREA WILL PROVIDE SOME WEAK LIFT AS ANOTHER COLD FRONT MOVES INTO THE REGION.
355 AM CDT Tue May 19 2015 Upper pattern remains active with a train of upper lows continuing this week. This morning an upper low was centered over the Intermountain West with SW flow reaching across the area. The first low will move off to the east as another trough develops along the CA coast. This will develop into a closed low before rolling east later in the week.
FORECAST WEAK 700 MB RIDGING SHOULD LEAD TO EVEN LESS CONVECTIVE ACTIVITY FOR DAYTIME WEDNESDAY THAN TODAY.
WITH SPLIT FLOW AROUND THE BLOCKING PATTERN. U/L DISTURBANCES WILL EJECT FROM THE BASE OF THE TROUGH OVER THE SOUTHWEST U. A DIGGING NORTHERN STREAM TROUGH OVER CENTRAL CANADA AND THE GREAT LAKES WILL COME IN PHASE WITH A WEAKENING SOUTHERN STREAM S/W WITH U/L TROUGH TEMPORARILY SINKING SOUTH ACROSS FLORIDA. WESTERLY FLOW OFF THE GULF WATERS WILL HOLD MAX TEMPS DOWN NEAR THE COAST EACH DAY WITH CONTINUED HIGHS IN THE LOWER 90S OVER THE INTERIOR.
353 AM CDT TUE MAY 19 2015 RADARS CLEAN THIS MORNING WITH TEMPS RANGING FROM THE LOW 60S TO LOW 70S.
Some valley locations, especially along to Continental Divide could see low temperatures around freezing by sunrise.
637 AM EDT TUE MAY 19 2015 UPDATE A COLD FRONT MOVED THROUGH LOWER MICHIGAN LAST NIGHT AND TEMPERATURES HAVE FALLEN INTO THE 40S. CLOUDS WILL CLEAR THIS EVENING AND TEMPERATURES WILL FALL TO FREEZING OR JUST BELOW MAINLY NORTH OF M-46.
TODAY THROUGH WEDNESDAY NIGHT 08Z SURFACE ANALYSIS HAD HIGH PRESSURE OVER THE NORTHERN PLAINS WITH TEMPERATURES BELOW FREEZING OVER EASTERN PORTIONS OF THE CWA. SNOW WILL DEVELOP OVER THE HIGHER ELEVATIONS THIS AFTERNOON AND SPREAD ACROSS SOUTHWEST SD TONIGHT WITH 850MB TEMPERATURES DROPPING TO 0C. TEMPERATURES WILL BE COOLER THAN GUIDANCE IN THE SOUTH TODAY AND NEAR GUIDANCE IN THE NORTH.
330 AM PDT TUE MAY 19 2015 TROUGHS OF LOW PRESSURE NEAR THE CALIFORNIA COAST WILL MAINTAIN ONSHORE FLOW INTO THE WEEKEND WITH BELOW AVERAGE INLAND TEMPERATURES.
406 AM CDT TUE MAY 19 2015 UPPER LOW/TROUGH OVER THE INTERMOUNTAIN WEST WILL MOVE EAST TODAY INTO TONIGHT. WHILE ANOTHER TROUGH TAKES SHAPE ALONG THE WEST COAST. COOLER AIR. ASSOCIATED WITH HIGH PRESSURE OVER THE DAKOTAS. THE FOCUS FOR HEAVY RAIN SHOULD SHIFT NORTHEAST TONIGHT INTO EARLY WEDNESDAY AS THE WESTERN TROUGH MOVES EAST AND FLATTENS. AN ASSOCIATED COLD FRONT WILL MOVE ACROSS OKLAHOMA AND NORTH TEXAS WEDNESDAY AND WEDNESDAY NIGHT.
403 AM EDT TUE MAY 19 2015 SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE THROUGH THE OVERNIGHT HOURS AHEAD OF AN APPROACHING COLD FRONT. SHOWERS AND THUNDERSTORMS ARE EXPECTED TUESDAY WITH COLD FRONTAL PASSAGE.
246 AM CDT TUE MAY 19 2015 AN UPPER TROUGH WILL REMAIN OVER THE NORTHLAND TODAY. BUT DRIER AIR AND WEAK HIGH PRESSURE AT THE SURFACE SHOULD SCOUR OUT THE CLOUDS THAT COVERED MOST AREAS AS OF 0730Z AND KEEP MOST AREAS DRY TODAY. MOST AREAS WILL DROP BELOW FREEZING. WITH SOME LOCALIZED AREAS INTO THE LOWER TWENTIES. WE EXPECT PARTLY TO MOSTLY SUNNY SKIES WEDNESDAY WITH TEMPERATURES WARMING INTO THE LOWER TO MIDDLE SIXTIES. A WEAK COLD FRONT WILL JUST BE NEARING THE INTERNATIONAL BORDER BY EARLY WEDNESDAY EVENING.
328 AM CDT TUE MAY 19 2015 THE SHORT TERM STARTS OFF FRESH IN THE WAKE OF THE COLD FRONTAL PASSAGE THROUGH THE WFO PAH FORECAST AREA. THE IMPRESSED BAROCLINIC ZONE GENERATES A SHARPER AGEOSTROPHIC RESPONSE IN LOW LOW LEVEL FLOW OVER WESTERN SECTIONS OF THE LOWER MISSISSIPPI VALLEY.
355 AM CDT TUE MAY 19 2015 QUIET NIGHT ACROSS THE CWA COMPARED TO 24 HOURS AGO DUE TO A FAIRLY STRONG RIDGE WHICH DEVELOPED FROM NORTH CENTRAL TEXAS INTO THE CENTRAL PLAINS. A SHORT WAVE WHICH EJECTS FROM A CLOSED LOW OVER THE WESTERN U.
SLIGHTLY WARMER MID LEVELS WITH THE DEVELOPMENT OF AN UPPER RIDGE SHOULD HELP TO LIMIT PCPN FOR WEDS. AS THE NEXT UPPER TROF DEEPENS NEAR THE CALI- FORNIA BAJA AND RE-ESTABLISHES THE SWLY WINDS ALOFT OVER THE AREA THURS. HIGH PRESSURE OVER THE GULF WILL MAINTAIN THE ONSHORE FLOW.
155 AM EDT TUE MAY 19 2015 HIGH PRESSURE WILL CONTINUE TO WEAKEN AND SHIFT EAST TODAY WHILE ATMOSPHERIC MOISTURE INCREASES OVER THE REGION. HIGH PRESSURE OFF THE SOUTHEAST COAST WILL WEAKEN TONIGHT. UPPER LEVEL RIDGE WILL BEGIN THE DAY ALONG THE COAST AND CONTINUE TRACKING EASTWARD INTO THE ATLANTIC BASIN TUESDAY WITH A ZONAL PATTERN FOR TUESDAY NIGHT THROUGH WEDNESDAY NIGHT. ONE CONCERN WILL BE THE LOW LEVEL WINDS WHICH WILL TURN NORTHWESTERLY DURING THE LATE MORNING AND EARLY AFTERNOON HOURS.
HIGH PRESSURE BUILDING OVER CENTRAL NORTH DAKOTA TONIGHT WILL RESULT IN LIGHT AND VARIABLE WINDS. FORECAST CHALLENGE WILL BE FREEZING TEMPERATURES TONIGHT.
WE EXPECT SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS TO DEVELOP ACROSS THE ENTIRE REGION THIS AFTERNOON WITH THE BEST COVERAGE OF STORMS ACROSS THE NORTHWEST ZONES IN THE VICINITY OF A STALLED COLD FRONT. THE COLD FRONT IS PROGGED TO LIFT TO NEAR THE RED RIVER TONIGHT IN RESPONSE TO ANOTHER DEVELOPING LOW PRESSURE SYSTEM IN THE WEST. THIS WILL ONLY BE TEMPORARY AS LARGE SCALE LIFT INCREASE ACROSS THE REGION WEDNESDAY AFTERNOON/NIGHT IN RESPONSE TO AN APPROACHING UPPER LOW FROM THE WEST AND THE RETURN OF THE COLD FRONT.
SNOW WILL ALSO CONTINUE ACROSS THE HIGHER ELEVATIONS THROUGH THIS MORNING WITH HEAVY ACCUMULATIONS ABOVE 10 KFT. TEMPERATURES WILL REMAIN COOL TONIGHT WITH LOWS IN THE LOWER TO MID 40S.
QUASI-ZONAL BUT NEGATIVE TILT TROUGH OVER GREAT BASIN IS SLOWLY MAKING ITS WAY EAST. TROUGH AXIS IS OVER NEVADA THIS MORNING. MODELS IN GENERALLY GOOD AGREEMENT ON MOVING THE CURRENT TROUGH AXIS EAST AND BRINGING LOBES OF THE GULF OF ALASKA LOW INTO THE WESTERN CONUS.
MAIN WEATHER FEATURE IS LEE SIDE TROFFING WHICH WILL CAUSE BREEZY TO WINDY CONDITIONS IN THE WESTERN ZONES. GOING FORECAST WAS IN GOOD SHAPE WITH SEASONABLY WARMER TEMPERATURES THIS WEEKEND AND DRY CONDITIONS.
A LEE SIDE TROUGH WILL DEVELOP ALONG THE EAST SLOPES OF THE MOUNTAINS WITH STRONGER WINDS ALOFT MIXING DOWN TO THE SURFACE WITH STRONG DOWNWARD FORCING.
1114 AM CST FRI NOV 6 2015 Cold front has now cleared the far southeast CWA and temperatures there are falling through the 50s. However, it will be notably cooler than yesterday as a cold front will have passed through the region overnight. Still, these cooler temperatures will be much closer to normal for early November than we have seen the past few days.
LOCALLY AND DOWNSTREAM OF THE COLD FRONT. SURFACE ONLY A SHALLOW DOME OF HIGH PRESSURE IS CURRENTLY OVER THE CENTRAL PLAINS AND LACKS THE DENSITY TO MAINTAIN FRONTAL MOVEMENT TONIGHT AND EARLY SATURDAY. HIGH PRESSURE WILL BUILD COLD AIR DENSITY OVER TIME TO SURGE THE FRONT INTO THE GULF LATE SATURDAY AFTERNOON AND EVENING.
OTHER CONCERNS YET TO BE HASHED OUT WILL BE POTENTIAL FOR DENSE FREEZING FOG TONIGHT. HOWEVER CURRENT THOUGHT IS NAM/RAP ARE OVERDONE ON MOISTURE RETURN AND BOUNDARY LAYER WILL ULTIMATELY BE MUCH DRIER (AS ADVERTISED BY GFS/ECMWF) DUE TO WESTERLY FLOW BENEATH ENCROACHING HIGH PRESSURE. CLEARING SKIES AND LIGHT WINDS WILL RESULT IN IDEAL RADIATIONAL COOLING CONDITIONS AND LOW TEMPERATURES WILL DROP INTO THE LOWER TO MIDDLE 20S.
1247 PM EST FRI NOV 6 2015 BREEZY AND COOLER CONDITIONS CAN BE EXPECTED THIS AFTERNOON ALONG WITH PARTLY TO MOSTLY CLOUDY SKIES. HIGHS ON SATURDAY WILL REACH THE LOWER 50S. SCATTERED MID LEVEL CLOUD MAY ALSO MOVE BACK IN OVERNIGHT WITH WEAK ELEVATED FRONTOGENESIS FORCING DOWNSTREAM OF NEXT UPPER MIDWEST MID LEVEL TROUGH.
HIGHS ON SATURDAY WILL REACH THE LOWER 50S. OVERALL EFFECTS ON THE AREA WILL BE MINIMIZED INITIALLY WITH LOWS DROPPING INTO THE UPPER 30S MOST AREAS EXCEPT UNDER CLOUD COVER AND SLIGHTLY WARMER FLOW OFF THE LAKE. MORE SEASONABLE TEMPERATURES WILL BE IN STORE WITH HIGHS FROM 50 TO THE LOWER 50S. STRONG/ELONGATED RIDGING BUILDING EWD FROM THE MID MS VLY INTO NORTHERN OHIO VALLEY/SOUTHERN GREAT LAKES SAT NIGHT. STILL SOME MINOR CONCERN FOR LIGHT SHRA MON NIGHT LIFTING NWD INTO ERN/SERN CWA AS WRN EXTENSION OF INITIALLY MOISTURE QUELLING RIDGE DEGENERATES. WHILE DETAILS REGARDING TIMING/TRACK OF NEWD EJECTION OF CYCLONE FROM SRN PLAINS INTO WRN GRT LKS WED INTO THU AM REMAIN MUDDLED AT BEST.
135 PM PST FRI NOV 6 2015 OFFSHORE FLOW WILL BRING WARMER AND DRIER CONDITIONS TO THE AREA THROUGH SATURDAY ALONG WITH SOME GUSTY NORTHEAST WINDS.
930 AM PST FRI NOV 6 2015 OFFSHORE FLOW WILL BRING WARMER AND DRIER CONDITIONS TO THE AREA TODAY THROUGH SATURDAY ALONG WITH SOME GUSTY CANYON WINDS.
305 PM EST FRI NOV 6 2015 COOLER FOR THE WEEKEND AS NORTHWEST FLOW DEVELOPS ACROSS THE GREAT LAKES SATURDAY.
1009 AM CST FRI NOV 6 2015 A COLD FRONT CONTINUES TO PUSH THROUGH THE MIDSOUTH THIS MORNING. /ISSUED 411 AM CST FRI NOV 6 2015/ A COLD FRONT IS RAPIDLY APPROACHING THE MIDSOUTH. THE COLD FRONT WILL SLOW ITS PROGRESS DURING THE DAY TODAY AS UPPER LEVEL FLOW BECOMES MORE PARALLEL TO IT.
1149 AM CST FRI NOV 6 2015 BROAD RIDGE OVER THE EASTERN SEABOARD WITH UPPER HIGH OVER THE GULF OF MEXICO. BROAD TROUGH OVER THE WESTERN AND CENTRAL CONUS WITH RIDGE OFF THE PACIFIC COAST. INCREASING CLOUDS THIS MORNING WITH TEMPERATURES AROUND FREEZING WITH COLD AIR IN PLACE. LOW TEMPERATURES IN THE LOW TO MID 20S WITH SOME TEENS OVER SHERIDAN COUNTY. AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL TRANSLATE QUICKLY WEST TO EAST ACROSS THE COUNTRY THIS WEEKEND.
PATCHY FOG WAS ACROSS PORTIONS OF THE LOWER COLUMBIA BASIN WHICH SHOULD DISSIPATE LATER THIS MORNING. OTHERWISE A RIDGE OF HIGH PRESSURE SHOULD BUILD INTO THE REGION BUT A FEW SHOWERS COULD DEVELOP OVER THE EAST SLOPES OF THE WA CASCADES AND BLUE/WALLOWA MTNS AS A WEAK DISTURBANCE BRUSHES OUR AREA TODAY.
1104 AM EST FRI NOV 6 2015 HIGH PRESSURE RIDGING INTO THE FORECAST AREA FROM THE ATLANTIC WILL WEAKEN THROUGH TONIGHT. AN APPROACHING COLD FRONT WILL MOVE THROUGH THE REGION SATURDAY NIGHT.
1134 AM MST FRI NOV 6 2015 TROUGH PASSING OVER THE AREA WITH THE BEST LIFT ALIGNED ALONG THE JET AXIS OVER INTERSTATE 80. SNOW HAS BEEN ONGOING OVER THE MOUNTAINS OVERNIGHT AS AN UPPER TROUGH OVER THE NORTHERN ROCKIES PUSHES SOUTHEAST INTO THE STATE. WITH THE UPPER TROUGH APPROACHING AND GOOD UPWARD QG VERTICAL MOTION. AS THE TROUGH AXIS PASSES OVERHEAD LATER THIS AFTERNOON. PERHAPS A DEGREE OR TWO COOLER IN THE COOL NORTHWEST FLOW.
1106 AM CST FRI NOV 6 2015 COLD FRONT APPEARS TO BE ALONG OR JUST WEST OF A LINE FROM NEAR LFK AND SHV ONTO NEAR LZK AS OF 17Z THIS MORNING. THE WATER VAPOR IS SHOWING SOME DEEP TROPICAL MOISTURE OVER THE YUCATAN AROUND AND UPPER LOW WHICH IS HEADED TO THE NW AND WILL MEET UP WITH THE COLD FRONT WITH SCATTERED TO NUMEROUS SHOWERS WITH ISOLATED THUNDER OVERRUNNING THE FRONT FOR MUCH OF THE AREA BUT WITH MUCH MORE ISOLATED COVERAGE IN THE I-30 CORRIDOR AS THIS MORNINGS FRONT HAS EASED ON BY MORE OR LESS.
1200 PM CST FRI NOV 6 2015 THE 17Z SFC ANALYSIS INDICATES A WEAK COLD FRONT EXTENDING FROM JUST N OF LFK. /ISSUED 1106 AM CST FRI NOV 6 2015/ COLD FRONT APPEARS TO BE ALONG OR JUST WEST OF A LINE FROM NEAR LFK AND SHV ONTO NEAR LZK AS OF 17Z THIS MORNING.
1244 PM EST FRI NOV 6 2015 AVIATION A COLD FRONT WAS CROSSING THE REGION EARLY THIS MORNING AND WILL TAKE THE RAIN WITH IT. THE FRONT WILL ALSO BRING COOLER AND BREEZY WEATHER.
AN UPPER RIDGE WILL CONTINUE TO BUILD ACROSS THE AREA BRINGING DRIER AND WARMER CONDITIONS.
1205 PM EST FRI NOV 6 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW A STRONG COLD FRONT WILL SWEEP THROUGH THE AREA THIS MORNING. BRINGING AN END TO WIDESPREAD RAINFALL AND COOLER CONDITIONS TO THE AREA. DRY WEATHER WILL PERSIST THROUGH THE WEEKEND AS HIGH PRESSURE TRAVERSES THE AREA. WITH A LARGE DOME OF HIGH PRESSURE IN CONTROL ACROSS THE AREA. LOWS OVER THE WEEKEND ARE LIKELY TO BE AROUND THE FREEZING MARK. HIGH PRESSURE OVER THE EASTERN U.
126 PM EST FRI NOV 6 2015 A COLD FRONT MOVING THROUGH NOW WILL USHER IN A COOLER BUT MORE SEASONAL WEATHER PATTERN. COLD FRONT RUNNING FROM KBFD-KPIT AND MOVING STEADILY INTO THE AREA. HIGH PRESSURE PUSHES IN FROM THE WEST. A SHARP TROUGH SWEEPS DOWN FROM THE NW ACROSS THE UPPER GREAT LAKES - BUT THE EFFECTS OF ENHANCED SHOWERS SHOULD NOT REACH THE COMMONWEALTH UNTIL AFTER DARK. LOW PRESSURE WAVE ALONG THE OLD FRONT NOW LOOKS LIKE IT WILL NOT PUSH ANY ADDITIONAL PRECIP UP INTO THE SE. TEMPERATURES WILL BE SIGNIFICANTLY COOLER THAN THE PAST WEEK.
254 PM CST FRI NOV 6 2015 THE 20Z SURFACE ANALYSIS INDICATED THAT THE PRE-FRONTAL TROUGH WAS MOVING THROUGH THE FORECAST AREA AHEAD OF THE MAIN COLD FRONT. THE WEAKENING COLD FRONT WAS ANALYZED TO BE EXTENDING SOUTHWEST FROM NEAR NASHVILLE. TEMPS TODAY WERE AGAIN IN THE LOW-MID 70S ACROSS MOST OF THE FORECAST AREA.
107 PM EST FRI NOV 6 2015 A COLD FRONT WILL MOVE QUICKLY EAST ACROSS THE REGION THIS MORNING. DRIER CONDITIONS WILL THEN RETURN FOR THE WEEKEND AS HIGH PRESSURE BUILDS IN. BROAD TROF OVER THE NATIONS MID SECTION WITH S/W PIVOTING NE THRU THE GREAT LAKES TODAY. TEMPERATURES WILL RISE INTO THE LOWER 70S LATER THIS MORNING. LARGE AREA OF HIGH PRESSURE OVER THE PLAINS WILL BEGIN TO BUILD INTO THE REGION TONIGHT. BUT AS THE HIGH BECOME MORE ENTRENCHED SATURDAY NIGHT SKIES SHOULD GO CLEAR.
THICK CLOUD COVER IS EXPECTED FOR MOST OF THE DAY SATURDAY WITH SCATTERED SHOWERS THROUGH THE DAY AS A COASTAL TROUGH/LOW DEVELOPS/DEEPENS OFF THE LOWER TX AND NE MX COASTS AND AS A 70KT H25 JET SHIFTS OVERHEAD. BLUSTERY CONDITIONS SHOULD DEVELOP AS THE AFOREMENTIONED TROUGH/LOW DEVELOP OFFSHORE WITH THE BREEZIEST CONDITIONS ACROSS THE COASTAL COUNTIES /AND OFFSHORE/. UPPER LEVEL JET IS PROG TO WEAKEN SATURDAY NIGHT ALONG WITH THE COASTAL TROUGH/LOW SHIFTING EASTWARD.
327 PM CST FRI NOV 6 2015 On Friday afternoon, a sheared out upper trough axis was crossing Nebraska and western Kansas. This was producing enough lift to support some radar returns across southern Nebraska and far northern Kansas, but the vast majority of this was not reaching the ground as the low/mid levels are very dry. The airmass in place on Saturday will be a bit cooler than Friday, so despite continued sunny skies and light winds, highs should remain in the upper 50s for much of the area.
107 PM EST FRI NOV 6 2015 HYDRO A COLD FRONT WAS CROSSING THE REGION EARLY THIS MORNING AND WILL TAKE THE RAIN WITH IT. THE FRONT WILL ALSO BRING COOLER AND BREEZY WEATHER.
249 PM CST FRI NOV 6 2015 A WEAK COLD FRONT WAS SWINGING THROUGH THE STATE FRIDAY AFTERNOON WITH SUBSIDENCE IN ITS WAKE CLEARING SKIES FROM THE NORTHWEST INTO THE SOUTH CENTRAL LATE THIS AFTERNOON. SATURDAY WILL BE PLEASANT WITH SUNNY SKIES AND HIGHS FROM THE MID 40S TO THE LOWER 50S.
Light northeast flow behind a cold front combining with the cloud cover spreading northward across much of the area to keep temperatures in the 60s and lower 70s this afternoon. Models still have differences with regards to the expected convection tonight, as return flow starts to bring moisture up and over the cold front. Thus, will place the higher PoPs across the southeast, but will also increase the rain chances a little more across the Concho Valley and Big Country as well. A reinforcing surge of cooler and drier air moves into the area tomorrow, ending the rainfall from north to south as it moves through. Highs will remain in the low to mid 60s.
AS OF WRITING SFC COLD FRONT WAS LOCATED JUST NW OF KLRD EWRD TO NEAR KNOG TO N OF KRKP.