Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 280012
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT SAT AUG 27 2016

...FLOOD POTENTIAL...

SEVERAL DAYS OF RAINFALL OVER THE WESTERN SUSITNA RIVER VALLEY...
WHICH INCLUDES THE YENTNA...SKWENTNA AND CHULITNA RIVERS... HAS
RESULTED IN HIGH WATER LEVELS. THE GOOD NEWS IS THAT WATER LEVELS
AND WILL CONTINUE TO FALL OVER THE NEXT SEVERAL DAYS.

HEAVY RAIN IN THE WESTERN BROOKS RANGE LAST WEEKEND HAS CAUSED HIGH
WATER LEVELS ON MANY STREAMS AND RIVERS IN THAT REGION OF THE STATE.
HIGH WATER IS EXPECTED TO REMAIN THROUGH THE WEEKEND. PLEASE REFER
TO THE SPECIAL WEATHER STATEMENT REGARDING THIS EVENT.

OTHERWISE THE FLOOD POTENTIAL IS LOW FOR THE REST OF THE STATE.

...HYDROMETEOROLOGICAL DISCUSSION...

A WEAK SYNOPTIC PATTERN HAS TAKEN HOLD OVER THE STATE. THE MAIN
FEATURES INCLUDE A DEVELOPING RIDGE OVER THE THE WEST COAST THAT
EXTENDS WELL INTO THE ARCTIC WITH A COUPLE OF SHORT WAVES MOVING
THROUGH THE CENTRAL AND SOUTHEASTERN PART OF THE STATE IN NORTHERLY
FLOW ALOFT. VERY LITTLE MOISTURE IS LEFT BEHIND THE ACTIVE WEATHER
PATTERN AS OF LATE FOR THESE SYSTEMS TO ACT UPON THUS MAKING FOR A
RELATIVELY QUIET AND CALM LATE SUMMER DAY. THIS PATTERN SEEMS TO
HOLD TOGETHER FOR THE NEXT COUPLE OF DAYS AS A LOW OUT OF CANADA
RETROGRATES WEST AND INTO THE GULF HELPING TO STRENGTHEN GRADIANTS
AND GIVING THE PANHANDLE THE CHANCE FOR SHOWERS EARLY NEXT WEEK.

...PRECIPITATION...

SELECTED PRECIPITATION TOTALS OVER THE PAST 24 HOURS ENDING AT 4 AM
TODAY:

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
SAWA2    SPEEL ARM STATION 4- PC RZ :   1.50
SCSA2    SAWMILL CREEK NEAR S PP RG :   1.31
CVFN     FORT NELSON          PP RR :   1.10
LLKA2    LONG LAKE SNOTEL     PC RM :   1.00
CYDL     DEASE LAKE, BC       PP RZ :   0.74
SIKA2    SITKA CRN            PC RG :   0.69
ECEA2    EAGLECREST TOP CWOP  PP RZ :   0.63
CXQH     WATSON LAKE, YT      PP RZ :   0.63
CXQH     WATSON LAKE, YT      PP RR :   0.60
PPSA2    POWDER PATCH STATION PC RZ :   0.55
MNDA2    MENDENHALL LAKE LEVE PP RG :   0.55
MNCA2    MONUMENT CREEK SNOTE PC R2 :   0.55
GOTA2    GOAT LAKE RAWS       PC RG :   0.50
CWKX     DEASE LAKE, BC       PP RR :   0.50
JSBA2    SUICIDE BASIN        PP RZ :   0.49
PASI     SITKA                PP RZ :   0.44
SHLA2    SHELTER COVE RAWS    PP RG :   0.32
SDIA2    SOUTH DOUGLAS        PC RZ :   0.32

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL TEMPERATURES FOR THE ENTIRE STATE... ESPECIALLY
SOUTHWEST.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL PRECIPITATION OVER THE SOUTHWEST AS WELL.

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

$$



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