Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 012246
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT SUN MAY 1 2016

...FLOOD POTENTIAL...

ON THE YUKON RIVER...THE RIVER HAS OPENED UP IN FORT YUKON. A FEW
OPEN AREAS DOWNSTREAM OF FORT YUKON ARE DEVELOPING. THERE IS A
SUBSTANTIAL OPEN AREA WHERE THE TANANA RIVER EMPTIES INTO THE YUKON.
THE LOWER YUKON RIVER BETWEEN HOLY CROSS AND MOUNTAIN VILLAGE IS
PARTIALLY TO MOSTLY OPEN. THE KOYUKUK RIVER OPENED UP IN BETTLES
LAST EVENING.

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 A LOW OVER THE WESTERN GULF NEAR
THE ALASKA PENINSULA. THIS LOW IS EXPECTED TO WEAKEN THROUGH
TONIGHT. THE NEXT UPPER LOW WILL MOVE OVER THE WESTERN ALEUTIAN
CHAIN BY TUESDAY... AND BE OVER BRISTOL BAY BY THURSDAY. SIGNIFICANT
RAIN FOR TODAY IS EXPECTED OVER THE PANHANDLE AND KENAI PENINSULA
TODAY AND TONIGHT. THE GREATEST AMOUNTS WILL BE IN THE 2 TO 3 INCH
RANGE. RAIN DIMINISHING FOR MONDAY... BUT STILL SOME AMOUNTS ABOVE
AN INCH FOR PORTIONS OF THE PANHANDLE. RELATIVELY DRY FOR
TUESDAY...SCATTERED SHOWERS THROUGH MUCH ALASKA... BUT STILL SOME
ONE INCH READINGS POSSIBLE ALONG THE GULF COAST.

...PRECIPITATION...

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

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
KPHA2    KETCHIKAN POWERHOUSE PP RZ :  3.04
HADA2    HAIDA RAWS           PC RG :  2.54
SLVA2    SILVIS POWERHOUSE    PP RZ :  2.52
META2    AK METLAKATLA 6S     PP RG :  2.35
PANT     ANNETTE              PP RZ :  2.19
PAKT     KETCHIKAN            PP RZ :  2.02
KTNA2    BEAVER FALLS POWERHO PP RZ :  2.00
SHLA2    SHELTER COVE RAWS    PC RG :  1.93
PAPG     PETERSBURG           PP RZ :  1.92
PAKW     KLAWOCK              PP RZ :  1.78
NUCA2    NUCHEK               PC RM :  1.70
CRGA2    CRAIG WEATHER STATIO PC RG :  1.68
PSJA2    PORT SAN JUAN        PC R2 :  1.60
PATO     PORTAGE GLACIER      PP RZ :  1.59
SPPA2    SNETTISHAM POWER PLA PP RZ :  1.55
MHPA2    MITKOF HWY PETERSBUR PP RZ :  1.48
PPSA2    POWDER PATCH STATION PC RZ :  1.30
PAWG     WRANGELL             PP RZ :  1.20
PACV     CORDOVA              PP RZ :  0.95

...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 ENTIRE STATE.

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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