Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 232245
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT TUE MAY 23 2017

...FLOOD POTENTIAL...

THE FLOOD POTENTIAL IS CURRENTLY LOW FOR THE ENTIRE STATE.

FOR THE STATUS OF RIVER ICE BREAKUP AROUND THE STATE VISIT:
HTTP://WWW.WEATHER.GOV/APRFC/SRAK48PACR

...HYDROMETEOROLOGICAL DISCUSSION....

THE UPPER LEVEL PATTERN THIS MORNING HAS A LOW IN BRITISH COLUMBIA
SOUTHEAST OF THE PANHANDLE... A LOW CENTERED NEAR THE CANADIAN
ARCHIPELAGO... A LARGE LOW IN THE BERING... AND A RIDGE OVER THE
GULF.  THE PATTERN WILL BE PROGRESSIVE OVER THE NEXT COUPLE OF
DAYS... WITH THE RIDGE IN THE GULF BUILDING TO THE NORTH AS IT
PUSHES EAST OVER SOUTHEAST ALASKA... WHILE THE BERING LOW MOVES TO
THE BERING STRAIT REGION.  THIS LOW WILL SPREAD PRECIPITATION OVER
THE MAINLAND FROM WEST TO EAST... IT WILL ALSO BRING COLDER AIR
ALOFT OVER THE STATE... SO SNOW OR MIXED PRECIPITATION IS POSSIBLE
IN THE NORTHWEST MAINLAND AND AT HIGHER ELEVATIONS.

...PRECIPITATION...

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

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
UCEA2    UPPER CHENA DOME     PC R2 :  1.61
SHLA2    SHELTER COVE RAWS    PC RG :  1.45
ZMBA2    ZAREMBO ISLAND SOUTH PC RG :  1.27
PAHY     HYDABURG             PP RZ :  1.23
PANT     ANNETTE              PP RZ :  1.16
SOUA2    SOULE RIVER          PC RG :  1.14
PAKT     KETCHIKAN            PP RZ :  1.14
PAWG     WRANGELL             PP RZ :  1.12
PAMM     METLAKATLA           PP RZ :  1.11
BENA2    BEN CREEK            PC RG :  1.11
THOA2    THORNE BAY RAWS      PC RG :  1.02
EVCA2    EIELSON VISITORS     PC RG :  1.01
HADA2    HAIDA RAWS           PC RG :  0.97
PAKW     KLAWOCK              PP RZ :  0.92
CLCA2    COAL CREEK NPS RAWS  PC RG :  0.92
PCKA2    PREACHER CREEK RAWS  PC RG :  0.91
PWRA2    POWER CREEK          PC R2 :  0.80
AGLA2    ANGEL CREEK RAWS     PC RG :  0.74
CRGA2    CRAIG WEATHER STN    PC RG :  0.73
MNCA2    MONUMENT CREEK       PC R2 :  0.72
TEUA2    TEUCHET CREEK        PC R2 :  0.69
ALEA2    ALSEK RIVER          PC RG :  0.69
PAPG     PETERSBURG           PP RZ :  0.68
DBWA2    DRY BAY GLACIER BAY  PC RG :  0.67
NKOA2    INNOKO FLATS RAWS    PC RG :  0.66
PAFS     NIKOLAI              PP RZ :  0.61
TKLA2    TOKLAT RAWS          PC RG :  0.59
BIRA2    BIRCH CREEK RAWS     PC RG :  0.59
MDTA2    MANLEY HOT SPRINGS   PC RG :  0.58
UNCA2    UPPER NOME CREEK     PC R2 :  0.56
TRSA2    TWO RIVERS           PC RG :  0.55
PHLA2    PHELAN CREEK         PC RG :  0.55
PAGN     ANGOON               PP RZ :  0.55
MSOA2    MUNSON RIDGE SNOTEL  PC R2 :  0.55
FYRA2    FORT YUKON RAWS      PC RG :  0.55
FYNA2    FORT YUKON SNOTEL    PC R2 :  0.55
PFYU     FORT YUKON           PP RZ :  0.54
UCHA2    CHENA RIVER          PC RG :  0.50

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED PROBABILITIES OF
BELOW NORMAL TEMPERATURES OVER THE KENAI PENINSULA... KODIAK
ISLAND... AND PART OF THE WESTERN ALASKA RANGE.  THERE ARE INCREASED
PROBABILITIES OF ABOVE NORMAL TEMPERATURES OVER MOST OF THE REST OF
THE MAINLAND AND OVER SOUTHEAST ALASKA.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL PRECIPITATION FROM KODIAK ISLAND ACROSS THE AKPEN...
THE SOUTHWEST MAINLAND... THE SEWARD PENINSULA... AND MUCH OF THE
NORTHWEST MAINLAND.  THERE ARE INCREASED PROBABILITIES OF BELOW
NORMAL PRECIPITATION OVER MOST OF THE REST OF THE MAINLAND SOUTH
OF THE BROOKS RANGE... AND OVER SOUTHEAST ALASKA.

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

$$
ACL



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