Freezing Rain Advisory 8, NWS Anchorage, AK

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
500 AM ADT THU MAY 24 2007

.MODEL DISCUSSION...
INITIALIZATION OF SYNOPTIC FEATURES MUCH BETTER TONIGHT. ALSO RUN TO
RUN CONSISTENCY REMAINS GOOD THROUGH AT LEAST 60 HOURS. ONE EXCEPTION
IS SMALL ROTATION JUST EAST OF KODIAK ISLAND CLEARLY VISIBLE ON SAT
IMAGERY. FEATURE LIKELY EXISTS MAINLY IN THE MID TO UPPER LEVELS. ANY
ASSOCIATED SURFACE ROTATION IS WEAK AND LIKELY TO DISSIPATE BY THIS
EVENING AS THE LOW TRACKS NORTHWESTWARD TOWARDS LAKE ILIAMNA.

.UPPER LEVELS...
UPPER LEVEL RIDGE EXTENDING OUT OF WESTERN CANADA OVER MAINLAND
ALASKA HOLDS STEADY THROUGH 6O HOURS. CUT OF UPPER LEVEL LOW JUST
SOUTH OF THE ALASKA PENINSULA WILL BECOME ANCHORED OVER THE EASTERN
BERING SEA BY 48 HOURS. HIGH AMPLITUDE TROUGH ALOFT DEVELOPS OVER
KODIAK ISLAND AND GULF OF ALASKA BETWEEN 48 AND 60 HOURS.

.SURFACE FEATURES...
REMAINS OF YESTERDAYS WEATHER FRONT EXTEND FROM THE SOUTHERN
KUSKOKWIM VALLEY ACROSS THE KENAI PENINSULA AND INTO PRINCE WILLIAM
SOUND. THE COPPER RIVER BASIN AND SUSITNA VALLEY REMAIN UNDER THE
INFLUENCE OF A RIDGE OF HIGH PRESSURE PUSHING UP OUT OF THE EASTERN
GULF. PATCHY LIGHT RAINS WILL END BY LATE AFTERNOON AND A FEW SUNNY
BREAKS WILL EMERGE THIS EVENING AS DOWNSLOPE CONDITIONS REDEVELOP.
GOOD RH RECOVERIES AND COOLER TEMPERATURES THROUGHOUT BOTH
SOUTHCENTRAL AND SOUTHWESTERN ALASKA WILL MAKE FOR FEW FIREWX
CONCERNS DESPITE GUSTY SOUTHEAST WINDS IN THE USUAL PLACES.
THE WESTERN BERING AND THE FAR ALEUTIANS ARE UNDER A BLANKET OF
STRATUS AND FOG WITH HIGH PRESSURE AT THE SURFACE AND WEAK FLOW
ALOFT. PATTERN PERSISTENT.

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

ASB MAY 07