Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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051
AGAK78 PACR 232259
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT MON MAY 23 2016

...FLOOD POTENTIAL...

THE COLVILLE RIVER UPSTREAM OF COLVILLE HAS A COUPLE ICE JAMS. HIGH
WATER WITH MINOR FLOODING POSSIBLE CAN BE EXPECTED UPSTREAM OF THESE
ICE JAMS. ALSO ICE JAM RELATED FLOODING IS POSSIBLE ALONG THE
KUPARUK RIVER NEAR THE DELTA.

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

FOR BREAKUP REPORTS AND FLOOD POTENTIAL... SEE THE BREAKUP SUMMARY
AT HTTP://APRFC.ARH.NOAA.GOV/DATA/MAPS/BRKUP_MAP.PHP (ALL LOWER CASE)

...HYDROMETEOROLOGICAL DISCUSSION...

THE UPPER LEVEL PATTERN HAS A TROUGH PIVOTING INTO NORTHEAST ALASKA.
ANOTHER TROUGH WILL PIVOT THROUGH THE STATE TUESDAY AND WEDNESDAY.
ANTICYCLONIC FLOW WILL TAKE OVER THE WEATHER PATTERN OVER THE STATE
BY THURSDAY.

PERIODS OF LIGHT RAIN WILL FALL OVER MUCH OF THE STATE OVER THE NEXT
FEW DAYS WITH ONLY LIGHT AMOUNTS. THE MOST SIGNIFICANT AMOUNTS WILL
BE ALONG THE NORTH SLOPE WHERE UP TO A HALF INCH OF RAIN IS EXPECTED
FOR TUESDAY INTO WEDNESDAY.

...PRECIPITATION...

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

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
KSHA2    KANTISHNA            PC R2 :  0.64
RUGA2    RUTH GLACIER RAWS    PP RG :  0.54
MCWA2    FLAT RAWS            PP RG :  0.53
EVCA2    EIELSON VISITORS CEN PP RG :  0.52
PADL     DILLINGHAM           PP RZ :  0.46
CHTA2    CHATANIKA RAWS       PC RG :  0.45
PASM     SAINT MARYS          PP RZ :  0.40
TKVA2    TOKOSITNA VALLEY     PC R2 :  0.36
PAMB     MANOKOTAK            PP RZ :  0.36

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL TEMPERATURES FOR THE ENTIRE STATE EXCEPT NORTHEAST AND
EASTERN INTERIOR.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL PRECIPITATION OVER THE NORTHERN HALF OF THE STATE.
INCREASED PROBABILITIES OF BELOW NORMAL PRECIPITATION ALONG THE
SOUTHWEST...SOUTH-CENTRAL AND 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://APRFC.ARH.NOAA.GOV/PRODUCTS/GHMD.PHP

A GRAPHICAL SLIDE SHOW PRESENTATION OF HYDROMET ISSUES IS AVAILABLE
AT HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/PRESENT
$$

KFM



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