Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 212333
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AGAK78 PACR DDHHMM
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HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT THU AUG 21 2014

...FLOOD POTENTIAL...

THE FLOOD ADVISORY FOR THE KENAI RIVER FROM KENAI LAKE TO THE MOUTH
HAS ENDED. WATER LEVELS ARE NOW BELOW MINOR FLOOD STAGE AND WILL
CONTINUE TO SLOWLY FALL.

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

...HYDROMETEOROLOGICAL DISCUSSION...

THE ONLY THING TO REPORT REGARDING THE WEATHER ON WEDNESDAY WAS THE
SHORT WAVE SWEEPING THROUGH THE NORTHWEST AND INTERIOR PART OF THE
STATE. QUICK PULSES OF RAIN DUMPED QUARTER TO THREE QUARTERS OF AN
INCH IN PORTIONS OF THAT REGION IN RELATIVELY SHORT PERIODS OF TIME.

THE LARGE SCALE PATTERN CONTINUES TO BE DOMINATED BY A LARGE SLOW
EASTWARDLY MOVING LOW OVER THE EASTERN BERING AND ITS COUNTER-
PART... A BROAD RIDGE OVER THE EASTERN PACIFIC. THE RIDGE AXIS WAS
THIS MORNING EXTENDING UP THROUGH THE GULF OF ALASKA AND INTO
CENTRAL ALASKA. THE ONLY CAVEAT IS THE SHORT WAVE OVER NORTHERN
ALASKA THAT WILL CONTINUE TO PRODUCE SHOWERS IN THAT REGION.

IN THE LONGER RANGE... ANOMALOUSLY STRONG RIDGE IN THE PACIFIC
APPEARS TO REMAIN INTACT UNTIL EARLY NEXT WEEK... WITH MODEL
CONSENSUS REMAINING STRONG. THE NEXT SIGNIFICANT SHORT WAVE DOESN`T
SHOW UP UNTIL FRIDAY EVENING OVER SOUTHCENTRAL.

FREEZING LEVELS THIS MORNING WERE BETWEEN 5200 FT AT NOME AND 8000
FT AT ANCHORAGE OVER THE MAINLAND... RISING TO BETWEEN 7600 FT TO
9600 FT OVER THE COASTAL LOCATIONS. FREEZING LEVELS WILL NOT CHANGE
MUCH OVER THE NEXT COUPLE OF DAYS.

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

LOCATION NAME                 PE TS    24 HR
======== ====                 == ==    =====
PAOM     NOME                 PP RZ :   0.50
PAKV     KALTAG               PP RZ :   0.50
HATA2    HATCHER PASS         PC R2 :   0.50
KAIA2    KAIYUH FLATS RAWS    PP RG :   0.46
BOXA2    BOX RIVER RAWS       PC RG :   0.45
MTRA2    MT RYAN SNOTEL       PC RM :   0.40
DKLA2    DUNKLE HILLS         PP RG :   0.40
PMNA2    GALENA RAWS AT POORM PP RG :   0.39
EVCA2    EIELSON VISITORS CEN PP RG :   0.38
TAGA2    TAG MOUNTAIN RAWS NE PP RG :   0.37
NESA2    NENANA SNOTEL        PC RM :   0.37
HATA2    HATCHER PASS         PP RG :   0.37
MTRA2    MT RYAN SNOTEL       PP RG :   0.35
BKSA2    BLAIR LAKES RAWS     PP RG :   0.33
FYNA2    FORT YUKON SNOTEL    PC RZ :   0.32
KSHA2    KANTISHNA            PC RM :   0.30
FYRA2    FORT YUKON RAWS      PP RG :   0.30
COFA2    COLDFOOT SNOTEL      PC RM :   0.30
BTAA2    BOLIO RAWS           PP RG :   0.27
MKLA2    MCKINLEY RIVER RAWS  PP RG :   0.21
UNCA2    UPPER NOME CREEK     PC RM :   0.20
TTLA2    TOTATLANIKA RAWS     PC RG :   0.20
SUGA2    SUGARLOAF MOUNTAIN   PC RM :   0.20
OKLA2    OKLAHOMA RAWS NR FAI PP RG :   0.20
NRUA2    NORUTAK LAKE RAWS    PP RG :   0.20
GOBA2    GOBBLERS KNOB SNOTEL PC RM :   0.20
DOYA2    DONNELLY RAWS        PP RG :   0.20
ATGA2    ATIGUN PASS SNOTEL   PC RM :   0.20

...LONG RANGE...

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

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL PRECIPITATION OVER THE NORTHERN THIRD OF SOUTHEAST ALASKA...
AND INCREASED CHANCES OF BELOW NORMAL PRECIPITATION OVER THE
SOUTHERN HALF OF SOUTHEAST ALASKA.

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

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

THIS HYDROMET DISCUSSION WILL BE ISSUED DAILY UNTIL FREEZE-UP BEGINS
IN THE FALL.

A GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS AVAILABLE AT
HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/GHMD.PHP

$$

ETH



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