Small Craft Advisory 875, NWS Anchorage, AK

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
1220 PM AKDT THU OCT 29 2009

.MODEL DISCUSSION...NAM AND GFS IN GOOD AGREEMENT ON THE VARIOUS
WEATHER SYSTEMS...EVEN OUT OVER THE BERING REGION.

.ANALYSIS AND UPPER LEVELS...PRIMARY FEATURE IS THE RIDGE OF HIGH
PRESSURE CURRENTLY LOCATED OVER THE CENTRAL BERING WHICH SHOULD
REMAIN INTACT THROUGH SUNDAY. THIS WILL GENERATE HIGH PRESSURE OVER
THE INTERIOR WITH EITHER A LOW OR TROUGH IN THE GULF OF ALASKA.
SYSTEMS IN THE WESTERN BERING WILL BE BLOCKED FROM THE CENTRAL AND
EASTERN BERING UNTIL MONDAY.

.SHORT TERM FORECAST...SOUTHCENTRAL...MODERATE TO STRONG NORTH WINDS
WILL PERSIST THROUGH SATURDAY AND UNTIL SUNDAY NIGHT IN THE COPPER
BASIN AND EASTERN PRINCE WILLIAM SOUND. LITTLE TO PRECIP OR CLOUDS
WITH EXCEPTION OF NORTHERN GULF.

SOUTHWEST ZONES EXPECT MAINLY CLEAR SKIES WITH AIR TEMPS IN TEENS TO
MID 20S...COOLER TO THE WEST.

BERING REGIONS..IN THE EAST CONTINUED LOW CLOUDS AS RIDGE PERSISTS.
IN THE WEST A SERIES OF LOWS/TROUGHS WILL MOVE THROUGH PRODUCING RAIN
AND MODERATE SOUTH TO WEST WINDS.  NEXT LARGE SYSTEM WILL MOVE IN SUN
AFTERNOON.

.LONG TERM FORECAST...MODELS INDICATING BERING RIDGE WILL DISSIPATE
BY MON MORNING ALLOWING MORE ACTIVE WEATHER TO MOVE THROUGH THE STATE
FROM THE WEST.  NEXT POTENTIAL WEATHER SYSTEM TO IMPACT WEST AND
SOUTHCENTRAL WITH PRECIP WOULD BE EXPECTED TUE NIGHT AND WED.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HIGH WIND WARNING 131
MARINE...GALES 121 140 132
FIRE WEATHER...NONE

JMP OCT 09