999 
FXUS63 KAPX 020317
AFDAPN

AREA FORECAST DISCUSSION FOR EASTERN UPPER/NORTHWEST LOWER MI
NATIONAL WEATHER SERVICE GAYLORD MI
1017 PM EST MON MAR 1 1999

IR/FOG LOOPS SHOWING MUCH OF THE LOW CLOUDINESS THAT PLAGUED NORTHERN 
MICHIGAN EARLIER TODAY HAS FALLEN APART AS SURFACE RIDGE AXIS SLIDES INTO 
LAKE MICHIGAN.  ONE SMALL PATCH LINGERS OVER WESTERN PORTIONS OF 
CHIPPEWA/MACKINAC COUNTIES...WITH SOME PATCHY SC IN AN AREA BOUNDED BY 
KTVC-KGLR-KHTL-KTVC.  DECK OF AC HAS BEEN SPREADING OUT OF WESTERN 
UPPER/NORTHEAST WI AND INTO NORTHWEST LOWER THIS EVENING...ALTHOUGH 
PREVAILING SUBSIDENCE HAS THINNED CLOUD COVER OUT A BIT.  LARGER AREA 
OF LOWER AC OVER EASTERN WI BEGINNING TO SPREAD EAST-SOUTHEAST INTO 
LAKE MICHIGAN AS WELL.  MID LEVELS FAIRLY DRY ACROSS LOWER MICHIGAN PER 
00Z APX/DTX RAOBS...AND WITH AFOREMENTIONED SUBSIDENCE IN PLACE EXPECT 
THAT CLOUD EDGE WILL HAVE A LITTLE HARDER TIME MOVING INTO NORTHWEST 
LOWER OVERNIGHT.  700MB RH PROG FROM 00Z RUC LENDS SOME CREDENCE TO 
THIS IDEA AS WELL.  GOING FORECAST ALREADY HAD PARTLY CLOUDY SKIES 
OVERNIGHT FOR NORTHWEST LOWER SO NO CHANGES PLANNED THERE.  FORECAST 
OVERALL LOOKS TO BE IN GOOD SHAPE...WITH PARTLY CLOUDY OVER NORTHWEST 
LOWER AND MOSTLY CLEAR INLAND.  WINDS SHOULD GO NEARLY CALM OVERNIGHT 
AS WEAK HIGH PASSES THROUGH...WHICH SHOULD SET THE STAGE FOR SOME 
DECENT RADIATIONAL COOLING.  OVERNIGHT LOWS IN THE TEENS LOOK GOOD MOST 
AREAS.  GIVEN FAIRLY CLOSE TEMP-DEW POINT SPREADS MAY HAVE TO MENTION 
SOME PATCHY FOG AS WELL...WHICH SHOULD BE ESPECIALLY PREVALENT IN LOW 
LYING AREAS.

JPB