FXUS63 KDLH 201534
AFDDLH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DULUTH MN
934 AM CST TUE JAN 20 2009
.DISCUSSION...SYNOPTIC PATTERN FEATURING WARM ADVECTION REGIME IN
LOW LEVELS AS NEXT SYSTEM IN MID LVL FLOW APPROACHES.SFC TROUGH
ACROSS CTRL MB WILL DROP SOUTH THIS EVENING. COLD AIR MASS IN
PLACE OVER CWA WILL BE ERODED BY ONCOMING MODIFIED PACIFIC AIR.
TEMPS UPSTREAM IN TEENS/20S AND SHOULD SEE THIS AIR MOVING INTO
REGION THIS AFTERNOON/EVENING. CHALLENGE IS DETERMINING HOW MUCH
ISENTROPIC LIFT OCCURS AHEAD OF APPROACHING SYSTEM AND WHETHER IT
RESULTS IN ANY PRECIP. THESE TYPES OF PATTERNS CAN BE QUITE
PROBLEMATIC IN FCSTING AMOUNT OF CLOUDS/EXTENT OF INVERSIONS.
BUFKIT TIME/HT PROFILES SUGGEST INTENSIFYING INVERSION DEVELOPING
THIS EVENING. SNDGS SUPPORT FZDZ POSSIBILITY WITH DGZ LAYER DRY.
WILL REEVALUATE EXISTING FZDZ IN GRIDS/ZFP UPON ARRIVAL OF NEW
GUIDANCE.
&&
POINT TEMPS/POPS...
DLH  21  16  27  16 /  10  10  10  20 
INL  25  13  28  11 /  10  20  20  20 
BRD  26  15  32  13 /  10  10  10  10 
HYR  21  13  30  15 /  10  10  10  10 
ASX  21  14  32  19 /  30  10  10  10 
&&
.DLH WATCHES/WARNINGS/ADVISORIES...
MN...NONE.
WI...NONE.
$$
CANNON