May 18, 2013
UNLIMITED CIGS/VIS ARE LIKELY AT ALL AIRPORTS THROUGH THIS EVENING EXCEPT POSSIBLY AT KDHN...WHERE SOME MVFR-VFR CIGS MAY DEVELOP NEAR A SLOWING COLD FRONT FROM THE NORTH. THE LATEST RAW MODEL OUTPUT AND SREF INDICATE LESS OF A CHANCE FOR DENSE FOG/LOW CLOUDS THURSDAY MORNING THAN RECENTLY...PERHAPS BECAUSE OF AN INCREASE IN MOISTURE ALOFT AND LIGHT NORTHERLY WINDS WITH THE COLD FRONT. THE GFS MOS STILL FORECASTS A PERIOD OF IFR-LIFR CONDITIONS AT MOST AIRPORTS. WE TOOK THE PROVERBIAL MIDDLE-OF-THE-ROAD APPROACH...IN HOPES THAT IT WILL BECOME MORE CLEAR TO LATER SHIFTS HOW FAR SOUTH THE COLD FRONT WILL REACH AND HOW THE VERTICAL MOISTURE/WIND PROFILE WILL DEVELOP BY THIS EVENING.
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