Small Craft Advisory 236, NWS Anchorage, AK

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
500 PM AST FRI MAR 9 2007

.DISCUSSION...

LATER WINTER HOLDING PATTERN CONTINUES. HIGH AMPLITUDE UPPER LEVEL
RIDGE OVER THE WESTERN BERING SEA AND DEEP CLOSED UPPER LEVEL LOW
OVER THE NORTHERN GULF WILL REMAIN ENTRENCHED THROUGH 60 HOURS. AFTER
THAT LOW IN GULF WEAKENS AND SHIFTS NORTHWARD ALLOWING FOR THE
DEVELOPMENT OF WESTERLY FLOW ALOFT ALONG THE ALEUTIANS AND SOUTHERN
GULF.

THE SURFACE LOW OVER THE GULF IS EXPECTED TO PERSIST THROUGH 120
HOURS BUT SHOULD DIMINISH FROM 974 MB TO 990 MB BY SUN AFTERNOON AND
TO 1010 MB BY TUE NIGHT. PRESSURE GRADIENT OVER WESTERN MAINLAND AND
EASTERN BERING WILL SLACKEN OVER THE NEXT 48 HOURS. NORTHWESTERLY
WINDS OVER THE EASTERN BERING AND SOUTHWEST ALASKA WILL FALL BELOW
GALE FORCE LATE TONIGHT.

CAA SNOW SHOWERS WILL CONTINUE TO INTERMITTENTLY HAMPER THE
PRIBILOFS...EASTERN ALEUTIANS...AND ALASKA PENINSULA BUT VISIBILITIES
SHOULD IMPROVE AS WIND AND BLOWING SNOW DIMINISH.

AN ALREADY WEAKENING OCCLUDED FRONT WILL MAKE ITS WAY INTO THE
WESTERN ALEUTIANS TOMORROW THEN STALL AND DISSIPATE BY SUN MORNING.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALES 120 150 AND 155.
FIRE WEATHER...NONE.

ASB MAR 07