Prognostic Meteorological Discussion
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FXAK02 KWNH 291854
PMDAK

ALASKA EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
253 PM EDT FRI APR 29 2016

VALID 12Z TUE MAY 03 2016 - 12Z SAT MAY 07 2016

THE 29/00Z ECENS...GEFS AND DETERMINISTIC ECMWF WERE THE
SELECTIONS MADE TODAY --- AND THE DETERMINISTIC ECMWF GUIDANCE
COMPRISED 30-40% OF THE GRID FILES THROUGH THE 4/12Z - 5/00Z TIME
FRAME.

THE FORECAST FOR THIS MEDIUM RANGE PERIOD PROVIDES A TEMPORARY AND
SUBTLE SHIFT FROM A PATTERN THAT HAS BEEN BENIGN...TO ONE THAT IS
A BIT MORE UNSETTLED. PARTICULARLY --- ACROSS THE INTERIOR... AND
PORTIONS OF THE PANHANDLE.

TODAY`S FORECAST CONTINUES TO BE TRENDING TO A `SLIGHTLY MILDER
AND WETTER` VERSION OF THE PREVIOUS ONE --- ALONG AND NORTH OF THE
BROOKS RANGE --- OWING TO THE PACIFIC INFLUENCES ON THE RIDGE
AXIS. BY THE END OF THIS FORECAST PERIOD...THERE MAY BE ENOUGH OF
A WEAK TROUGH ALOFT `LINGERING` ALONG 155W TO KEEP SOME OF THE
UNSETTLED WEATHER IN THE WEST. BUT THE MEANS CONTINUE TO TREND
TOWARDS SHIFTING THE BULK OF THE TROUGH ENERGY/MOISTURE DOWNSTREAM
--- AND MIGRATING IT --- TO THE US MAINLAND`S WEST COAST.

VOJTESAK

$$





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