Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT MON MAY 2 2016

...FLOOD POTENTIAL...

ON THE YUKON RIVER...THE RIVER CONTINUES TO DEVELOP OPEN AREAS
DOWNSTREAM OF THE ACTUAL BREAKUP FRONT. WHERE THE KOYUKUK AND TANANA
RIVERS EMPTY INTO THE YUKON... LONG STRETCHES OF OPEN WATER HAVE
DEVELOPED. GOING BY SATELLITE IMAGERY...THE LOWER YUKON BELOW HOLY
CROSS IS NEARLY ALL OPEN TO JUST SHY OF THE BERING SEA.

THE KOYUKUK RIVER CONTINUES TO SEE MORE OPEN AREAS ALONG ITS ENTIRE
LENGTH. THE STRETCH FROM BETTLES TO ALLAKAKET IS ALMOST ENTIRELY
OPEN.

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 TODAY HAS THE LOW STILL OVER THE WESTERN
GULF NEAR THE ALASKA PENINSULA. THIS LOW CONTINUES TO WEAKEN. THE
NEXT UPPER LOW WILL MOVE OVER THE WESTERN ALEUTIAN CHAIN BY
TUESDAY... AND BE OVER THE WESTERN GULF BY THURSDAY. FOR TODAY... UP
TO AN INCH OF RAIN FROM PRINCE WILLIAM SOUND THROUGH THE PANHANDLE.
OTHERWISE JUST SCATTERED SHOWERS INLAND UP TO THE INTERIOR. UP TO 2
INCHES OF RAIN EXPECTED TUESDAY OVER PORTIONS OF PRINCE WILLIAM
SOUND. MORE SCATTERED SHOWERS OVER THE SOUTHERN TWO-THIRDS OF THE
STATE. A SIMILAR RAINFALL PATTERN EXPECTED FOR WEDNESDAY.

...PRECIPITATION...

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

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
KPHA2    KETCHIKAN POWERHOUSE PP RZ :  3.08
SLVA2    SILVIS POWERHOUSE    PP RZ :  2.51
SPPA2    SNETTISHAM POWER PLA PP RZ :  2.37
META2    AK METLAKATLA 6S     PP RG :  2.20
LLKA2    LONG LAKE SNOTEL     PC RM :  2.10
PAKT     KETCHIKAN            PP RZ :  1.99
SHLA2    SHELTER COVE RAWS    PC RG :  1.90
KLWA2    HOLLIS               PP RZ :  1.89
PTBA2    POINT BAKER          PP RZ :  1.79
MHPA2    MITKOF HWY PETERSBUR PP RZ :  1.76
HADA2    HAIDA RAWS           PC RG :  1.76
CRGA2    CRAIG WEATHER STATIO PC RG :  1.76
PAPG     PETERSBURG           PP RZ :  1.74
PAKW     KLAWOCK              PP RZ :  1.74
PANT     ANNETTE              PP RZ :  1.69
HADA2    HAIDA RAWS           PP RG :  1.68
KTNA2    BEAVER FALLS POWERHO PP RZ :  1.66
PASI     SITKA                PP RZ :  1.60
PAMM     METLAKATLA           PP RZ :  1.57

...LONG RANGE...

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

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL PRECIPITATION OVER THE WESTERN HALF OF THE STATE...
INCLUDING THE ALEUTIAN CHAIN.

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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