Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 032258
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT FRI JUL 3 2015

...FLOOD POTENTIAL...

A SMALL STREAM FLOOD ADVISORY FOR DENALI WEST OF THE PARKS HIGHWAY
HAS BEEN CANCELLED.

THERE IS A POSSIBLE GLACIER DAMMED LAKE RELEASE FROM THE MENDENHALL
GLACIER.  AT THIS TIME NO FLOODING IS EXPECTED FROM THIS POSSIBLE
RELEASE.

ELSEWHERE ACROSS THE STATE... THE FLOOD POTENTIAL IS LOW.

...HYDROMETEOROLOGICAL DISCUSSION...

THE UPPER LEVEL PATTERN TODAY HAS A SMALL LOW CENTERED IN THE
WESTERN INTERIOR - SANDWICHED BETWEEN AN HIGH OVER EASTERN SIBERIA
AND A RIDGE IN THE GULF - AND A LOW NEAR THE WESTERN ALEUTIANS WITH
VARIOUS SHORTWAVES ROTATING AROUND IT.  THE LOW IN THE WESTERN
INTERIOR IS BRINGING SHOWERS TO THAT REGION TODAY... AND THE
ALEUTIAN LOW IS BRINGING RAIN TO THE ALEUTIANS AND SOUTHERN AKPEN
TODAY.  OVERNIGHT THE WESTERN INTERIOR LOW WILL DRIFT SOUTHWESTWARD
AND GET CAUGHT IN THE CIRCULATION AROUND THE ALEUTIAN LOW AS THE
FIRST FRONT FROM THAT LOW SPREADS RAIN INTO THE SOUTHWEST MAINLAND
AND SOUTHCENTRAL.  AS THIS HAPPENS THE RIDGE IN THE GULF AND THE
SIBERIAN HIGH WILL CONNECT AND BRING WARM AND DRY CONDITIONS TO
EASTERN AND NORTHERN ALASKA.

...PRECIPITATION...

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

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
LLKA2    LONG LAKE SNOTEL     PC RM :  1.40
UCHA2    CHENA RIVER          PC RG :  1.18
MSOA2    MUNSON RIDGE SNOTEL  PC R2 :  0.88
HONA2    HOONAH RAWS          PC RG :  0.88
SDIA2    SOUTH DOUGLAS        PC RZ :  0.69
SMTA2    SALMON TROUT RAWS    PC RG :  0.64
PAGY     SKAGWAY              PP RZ :  0.56
PAHN     HAINES LANDING STRIP PP RZ :  0.52
JDTA2    JUNEAU DOWNTOWN LARC PC RP :  0.48
STUA2    STUART CREEK RAWS    PC RG :  0.39
FYRA2    FORT YUKON RAWS      PC RG :  0.39
TTLA2    TOTATLANIKA RAWS     PC RG :  0.38
PAJK     JUNEAU WFO           PC RZ :  0.36
JCKA2    JARVIS CREEK RAWS    PC RG :  0.36
SLRA2    SALCHA RIVER RAWS    PC RG :  0.34
KTZA2    NOATAK RAWS          PC RG :  0.33
WONA2    WONDER LAKE RAWS     PC RG :  0.32
TYAA2    TAIYA RIVER          PC RG :  0.31
SALA2    SALCHA RIVER         PC RG :  0.31
SRYA2    SITUK RIVER          PC RG :  0.30
PAYA     YAKUTAT              PP RZ :  0.30
PASI     SITKA                PP RZ :  0.30
MCAA2    MONTANA CREEK        PC RG :  0.30
DOYA2    DONNELLY RAWS        PC RG :  0.30
MRGA2    MARGUERITE CREEK     PC RG :  0.29
BLSA2    BENTALIT LODGE       PC RG :  0.28
BKSA2    BLAIR LAKES RAWS     PC RG :  0.28
TRSA2    TWO RIVERS           PC RG :  0.27
TETA2    JATAHMUND LAKE RAWS  PC RG :  0.27

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES FOR ABOVE
NORMAL TEMPERATURES OVER THE ENTIRE STATE.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR
ABOVE NORMAL PRECIPITATION OVER MOST OF THE MAINLAND... EXCLUDING
THE SOUTHEAST MAINLAND AND A STRIP ALONG THE NORTHERN COAST.  THERE
ARE INCREASED CHANCES FOR BELOW NORMAL PRECIPITATION OVER MOST OF
SOUTHEAST ALASKA.

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

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

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
$$

ACL


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