Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 242312
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HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT FRI JUN 23 2017

...FLOOD POTENTIAL...

THE FLOOD POTENTIAL IS LOW FOR ALASKA.

...HYDROMETEOROLOGICAL DISCUSSION....

ON THE WEATHER MAP... THERE WAS AN UPPER LOW OVER THE GULF AND A
WEAK TROUGH AXIS THAT HAS MOVED INLAND OVER THE NORTHWEST COAST. A
RIDGE IS NOSING INTO THE EASTERN INTERIOR FROM CANADA AND IN FROM
THE SOUTHWEST. THE RIDGING OVER CANADA WILL WEAKEN AS THE GULF LOW
MOVES OVER THE PANHANDLE EARLY SUNDAY WHILE THE RIDGE AXIS MOVES
INLAND OVER THE WEST. THE TROUGH MOVES THROUGH THE INTERIOR OVER THE
WEEKEND BUT IS NOT EXPECTED TO GENERATE MUCH PRECIPITATION. OF MORE
INTEREST IS THE THERMAL LOW AND SHORT WAVE TROUGH NEAR THE SOUTHEAST
INTERIOR THAT IS MANAGING TO GENERATE  SOME INTENSE RAIN SHOWERS.

THE SOUTHEAST INTERIOR... COPPER RIVER BASIN AND MUCH OF THE
PANHANDLE WITH GET SHOWERS TODAY AND TONIGHT... SOME OF WHICH COULD
PRODUCE UP TO AN INCH TO AN INCH AND A HALF OF RAINFALL. ON
SUNDAY... RAINFALL AMOUNTS DROP OF DRAMATICALLY ESPECIALLY OVER THE
SOUTHEAST INTERIOR BUT PICK UP OVER THE ALEUTIANS AS THE NEXT SYSTEM
MOVES IN FROM THE WEST.

...PRECIPITATION...

SELECTED 24 HOUR PRECIPITATION AMOUNTS ENDING AT 4 AM AKDT TODAY:

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
WICA2    WICKERSHAM DOME NEAR PP RG :   0.90
KSNA2    KING SALMON 42 SE    PP RG :   0.79
WONA2    WONDER LAKE RAWS     PP RG :   0.78
AMCA2    AMERICAN CREEK       PC RM :   0.70
RDMA2    AK RED DOG MINE 3 SS PC R2 :   0.67
EGLA2    EAGLE                PP RZ :   0.66
DNLA2    DENALI 27N CRN       PC R3 :   0.49
KELA2    KELLY RIVER RAWS     PC RG :   0.45
MPSA2    MOOSE PASS RR        PP RG :   0.43
BENA2    BEN CREEK NR FORT YU PP RG :   0.41
TKLA2    TOKLAT RAWS          PC RG :   0.40
CLCA2    COAL CREEK NPS RAWS  PP RG :   0.35
BTAA2    BOLIO RAWS           PP RG :   0.35
EVCA2    EIELSON VISITORS CEN PP RG :   0.34
PARS     RUSSIAN MISSION      PP RZ :   0.33
TQUA2    TELAQUANA LAKE       PC RM :   0.30

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL TEMPERATURES OVER NORTHERN MAINLAND AND THE ALEUTIAN
ISLANDS. INCREASED PROBABILITIES OF BELOW NORMAL TEMPERATURES OVER
SOUTHERN MAINLAND AND THE PANHANDLE.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL PRECIPITATION OVER WESTERN AND NORTHERN ALASKA...
INCLUDING THE ALEUTIAN ISLANDS.

PLEASE REFER TO THE CLIMATE PREDICTION CENTER HOME PAGE FOR FURTHER
INFORMATION.

....................................................................

THIS TEXT PRODUCT WILL BE ISSUED DAILY UNTIL FREEZEUP IN THE FALL. A
GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS AVAILABLE AT
HTTP://WWW.WEATHER.GOV/APRFC/GRAPHICALHMD

$$
ETH



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