Small Craft Advisory 489, NWS Anchorage, AK

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
100 PM ADT MON JUN 13 2005

.DISCUSSION...
.500MB...BLOCKING PATTERN WITH HIGH OVER MAINLAND AND TWO NEARLY
CUT-OFF CENTERS OVER THE GULF OF ALASKA AND BERING SEA WILL HOLD
THROUGH MID/LATE THIS WEEK. MAINLAND HIGH IS PINCHED NORTH AS SHORT
WAVE MOVING SOUTH ALONG WESTERN ALASKA LINKS WITH BEING SEA VORTEX.

.SURFACE...THERMAL TROUGH OVER THE SOUTHERN AND CENTRAL MAINLAND
INTENSIFIES AS 850MB TEMPS SHOW SIGNIFICANT RISES OVER THE NEXT
COUPLE OF DAYS. EXPECT AFTERNOON AND EVENING SHOWERS AND
THUNDERSTORMS TO BE THE GENERAL RULE ACROSS MUCH OF THE INTERIOR
FORECAST AREAS THROUGH WED. MARINE AIR OVER COASTAL LOCALS SHOULD
LIMIT THE EXTENT OF CONVECTION. NIGHT AND EARLY MORNING FOG SHOULD
CONTINUE ALONG THE SOUTHWEST COAST WITH SOME DENSE FOG ADVISORIES
LIKELY TUE AM. 985 MB CENTER NORTHWEST OF SHEMYA SLOWLY WEAKENS AND
DRIFTS SOUTHEAST. ASSOCIATED FRONTAL TROUGH OVER THE EASTERN
ALEUTIANS WILL ELONGATE SOUTHEAST AND WEAKEN AND SHOULD NOT MAKE MUCH
MORE HEADWAY EAST.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...NONE.
FIRE WEATHER...NONE.

RMC JUN 05