Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 032250
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT MON AUG 3 2015

...FLOOD POTENTIAL...

FLOOD POTENTIAL IS CURRENTLY LOW ACROSS THE STATE.

...HYDROMETEOROLOGICAL DISCUSSION...

THE UPPER LEVEL PATTERN THIS MORNING HAS THE NORTHERN LOW WELL NORTH
OF THE ALCAN BORDER AND OTHER LOWS OVER SOUTHERN SOUTHEAST
ALASKA/BRITISH COLUMBIA... SOUTH OF THE WESTERN AKPEN...AND JUST
EAST OF THE SOUTHERN KAMCHATKA PENINSULA.  HIGH PRESSURE COVERS THE
INTERIOR AND SOUTHERN MAINLAND.

SHORT WAVES ROTATING AROUND THE NORTHERN LOW WILL BRING PERIODS OF
RAIN TO THE NORTH SLOPE OVER THE NEXT COUPLE OF DAYS.  THE LOW OVER
SOUTHEAST/BRITISH COLUMBIA WILL MOVE SLOWLY SOUTHEASTWARD...
BRINGING RAIN TO PORTIONS OF SOUTHEAST INTO LATE TUESDAY.  THE LOW
SOUTH OF THE EASTERN ALEUTIANS WILL MOVE SLOWLY NORTHEASTWARD...
SPREADING RAIN INTO THE ALEUTIANS... THE SOUTHERN AKPEN... AND
SOUTHERN KODIAK ISLAND.

LATE TUESDAY A TROUGH ROTATING AROUND THE NORTHERN LOW WILL MOVE
INTO THE NORTHWEST MAINLAND AND WILL BEGIN TO MERGE WITH THE LOW
SOUTH OF THE AKPEN.  THIS WILL PUSH THE HIGH OFF TO THE EAST AND
BRING WIDESPREAD RAIN BACK TO THE MAINLAND.

...PRECIPITATION...

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

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
PAGY     SKAGWAY              PP RZ :  0.36
SHLA2    SHELTER COVE RAWS    PC RG :  0.31
PABR     BARROW AIRPORT       PP RZ :  0.30
PASC     DEADHORSE            PP RZ :  0.27
MDEA2    MEADE RIVER          PC RG :  0.24
NUIA2    FISH CREEK MILE 32   PC RG :  0.23
PAQT     NUIQSUT              PP RZ :  0.22
HADA2    HAIDA RAWS           PC RG :  0.22
TYAA2    TAIYA RIVER          PC RG :  0.21
TOAA2    TOK #2               PP RZ :  0.21
SOUA2    SOULE RIVER          PC RG :  0.20
PAHN     HAINES LANDING STRIP PP RZ :  0.19
THOA2    THORNE BAY RAWS      PC RG :  0.18
PATQ     ATQASUK              PP RZ :  0.15
PANT     ANNETTE              PP RZ :  0.15
PAPG     PETERSBURG           PP RZ :  0.14
TOKA2    TOK                  PP RZ :  0.13

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL TEMPERATURES FOR MOST OF THE STATE... THE EXCEPTION IS
A BAND OF NEAR NORMAL PROBABILITIES ALONG THE NORTH COASTAL REGION.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED PROBABILITIES OF
BELOW NORMAL PRECIPITATION FOR MUCH OF THE INTERIOR AND SOUTHWEST
MAINLAND... AND INCREASED CHANCES OF ABOVE NORMAL PRECIPITATION FOR
THE AKPEN... KENAI PENINSULA... NORTH GULF COAST... AND 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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