Small Craft Advisory 193, NWS Anchorage, AK

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
200 PM AST FRI FEB 23 2007

.DISCUSSION...
ALOFT.
A STATIONARY UPPER LOW NORTH OF THE MCKENZIE DELTA WILL PERSIST
THROUGH TUE NEXT WEEK.  A SHORT WAVE ALOFT WILL MOVE FROM THE
NORTHERN BERING TO PRINCE WILLIAM SOUND BY SAT NIGHT AND TO THE
PANHANDLE BY LATE SUN. AN UPPER LEVEL HIGH WILL BUILD OVER THE
WESTERN ALEUTIANS BY EARLY SAT THEN MOVE TO THE EASTERN ALEUTIANS BY
LATE SUN.  STRONG UPPER LEVEL NORTHWEST WINDS WILL FORM OVER THE
ALASKA PENINSULA FRI NIGHT THEN MIGRATE TO KODIAK ISLAND AND SOUTHERN
COOK INLET BY LATE SUN.  THE STRONG UPPER NORTHWEST WINDS WILL
PERSIST OVER THE NORTHWEST GULF OF ALASKA THROUGH WED.

NUMERICAL MODELS REMAIN CONSISTENT THROUGH THE WEEKEND.

SURFACE.
A MODERATE SURFACE LOW AT 50N SOUTH OF KODIAK WILL MOVE EAST TO NEAR
VANCOUVER ISLAND BY LATE SUN.  A TROUGH IN THE NORTHEAST GULF AND THE
PRESSURE GRADIENT OVER PRINCE WILLIAM SOUND WILL STRENGTHEN LATE SAT
AND SUN.  THIS WILL MARK A RETURN OF STRONG NORTH WINDS TO VALDEZ THE
COPPER DELTA AND PRINCE WILLIAM SOUND SAT NIGHT AND SUN.

A SURFACE HIGH OVER THE WESTERN ALEUTIANS WILL MOVE TO THE EASTERN
ALEUTIANS BY LATE SUN.

COLD AND CLEAR WEATHER IS EXPECTED TO PERSIST OVER THE SOUTHERN
MAINLAND TROUGH NEXT WEEK.  STRONG NORTH WINDS ARE FORECAST FOR
PRINCE WILLIAM SOUND AND THE COPPER DELTA SAT NIGHT AND SUN.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HIGH WIND WATCH 131 135
MARINE...GALE 155
         HEAVY FREEZING SPRAY 121 125 129 130 138 140 150 160 165 180
                                185 410

RHH FEB 07