Small Craft Advisory 431, NWS Anchorage, AK

AREA FORECAST DISCUSSION
SOUTH CENTRAL AND SOUTHWEST ALASKA
500 PM ADT WED MAY 25 2005

.DISCUSSION...TODAYS FEATURES INCLUDE A STRONG LOW NEAR ADAK...A
WEAK LOW IN THE SOUTHERN GULF OF ALASKA...A PERSISTENT THERMAL TROUGH
IN THE INTERIOR...AND A VIGOROUS EASTERLY WAVE MOVING ACROSS THE
COPPER RIVER BASIN.

ADAK LOW.  THE ETA MAKES THE TRIPLE POINT LOW THE DOMINATE CENTER AND
ROTATES IT NORTH OF CAPE SARICHEF ON FRI. THE GFS AND UKMET ARE
PREFERRED AND KEEP THE PARENT LOW AS THE DOMINATE LOW AND ROTATE IT
ON A MORE SOUTHERLY TRACK SOUTH OF DUTCH HARBOR ON FRI THEN NEAR
DUTCH HARBOR ON SAT. THE ASSOCIATED FRONT WEST OF UNALASKA WILL MOVE
SLOWLY EAST AND EXTEND FROM BRISTOL BAY TO KODIAK ISLAND FRI.  EXPECT
STRONG WINDS AND RAIN FOR THE PRIBILOFS AND EASTERN ALEUTIANS
TODAY...SPREADING EASTWARD TO THE ALASKA PENINSULA TONIGHT AND TO
KODIAK AND SOUTHERN BRISTOL BAY FRI WITH THIS LOW.

A WEAK LOW ABOUT 600 NM SOUTH OF CORDOVA WILL GET CAUGHT IN THE
CIRCULATION OF THE ADAK LOW AND ROTATE TO THE BARREN ISLANDS BY LATE
THU THEN DISSIPATE.  THIS LOW WILL BRING RAIN TO THE NORTH GULF COAST
THU.

A WELL DEFINED CLOUD MASS ASSOCIATED WITH AN EASTERLY WAVE IS MOVING
ACROSS THE COPPER RIVER BASIN TOWARD COOK INLET.  EXPECT SHOWERS AND
ISOLATED WET THUNDERSTORMS TO MOVE WESTWARD ACROSS THE COPPER RIVER
BASIN TODAY AND OVER COOK INLET AND THE SUSITNA VALLEY TONIGHT.
SHOWERS WILL LIKELY PERSIST OVER SOUTH CENTRAL THU.

A THERMAL TROUGH EXTENDS FROM THE KUSKOKWIM NORTHEASTWARD TO THE
UPPER TANANA AND YUKON BASINS.  EXPECT THUNDERSTORMS LATE TODAY OVER
THE EASTERN KUSKOKWIM VALLEY AGAIN TODAY.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE
MARINE...STORM PKZ 165 170 179
        GALE PKZ 155 150 160 171 172 175 176 180 185 410
FIRE WEATHER...NONE

RHH MAY 05