Gale Warning 1030, NWS Anchorage, AK

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
500 AM AST THU DEC 27 2007

.MODEL DISCUSSION...MODELS IN OKAY AGREEMENT. GFS PREFERRED DUE TO
GOOD RUN TO RUN CONSISTENCY.

A 973 MB LOW NEAR THE ALASKA PENINSULA WILL MOVE INTO THE
SOUTHWESTERN INTERIOR AND DISSIPATE BY FRIDAY AFTERNOON. THE
ASSOCIATED WEATHER FRONT EXTENDS ACROSS THE EASTERN BERING SEA AND
BRISTOL BAY. IT WILL PASS OVER KODIAK ISLAND TODAY THEN BECOME NEARLY
STATIONARY ALONG THE GULF COAST ON FRIDAY. PLENTY OF SNOW AND RAIN
ALONG AND IN ADVANCE OF FRONT. GALE AND STORM FORCE NORTHWESTERLIES
ALONG THE REAR FLANK OF THE LOW. VISIBILITIES REDUCED TO ONE MILE OR
LESS AT TIMES IN SNOW AND BLOW SNOW THIS MORNING ACROSS THE PRIBILOFS
AND PORTIONS OF THE EASTERN ALEUTIANS AND ALASKA PENINSULA.

THE PRESSURE GRADIENT ALONG THE GULF COAST WILL REMAIN TIGHT THROUGH
THIS EVENING THEN GRADUALLY SLACKEN WHEN A 978 MB TRIPLE POINT LOW
DEVELOPS ALONG THE FRONT THIS EVENING. THE LOW WILL RAPIDLY DEEPEN TO
978 MB APPROX 60 NM NORTHWEST OF KODIAK CITY THU EVENING THEN WEAKEN
TO 986 MB 60 NM SOUTH OF YAKUTAT FRI NIGHT. GALE FORCE
NORTHEASTERLIES ALONG THE NORTH GULF COAST WILL HOLD THROUGH THIS
EVENING THEN RAPIDLY DIMINISH BY FRIDAY MORNING.

SNOW WILL DEVELOP ACROSS THE WHOLE OF SOUTHCENTRAL ALASKA ONCE AGAIN
TONIGHT AS THE TRIPLE POINT PASSES ALONG THE NORTH GULF COAST.
HOWEVER SIGNIFICANT SNOW ACCUMULATIONS SHOULD BE CONFINED TO KODIAK
ISLAND PRINCE WILLIAM SOUND AND PORTIONS OF THE KENAI PENINSULA.

A 983 MB LOW JUST SOUTH OF ST MATTHEW ISLAND WILL STRENGTHEN TO 975
MB THU NIGHT THEN WEAKEN TO 985 MB FRI NIGHT. BROAD WEST TO NORTHWEST
FLOW WILL ESTABLISH ITSELF ACROSS THE WHOLE OF THE BERING TODAY AND
PERSIST THROUGH THE WEEKEND. EXPECT SCATTERED CAA SNOW SHOWERS.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HIGH WIND 181
MARINE...STORM 150 155 160 165 179
         GALE  120 130 132 138 140 170 171
         SPRAY 160 165 180 185
FIRE WEATHER...NONE.

ASB DEC 07