Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
000
AGAK78 PACR 072251
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT TUE JUL 7 2015

...FLOOD POTENTIAL...

THE FLOOD POTENTIAL IS CURRENTLY LOW ACROSS THE STATE.

...HYDROMETEOROLOGICAL DISCUSSION...

THE UPPER LEVEL PATTERN TODAY IS DOMINATED BY A LARGE LOW IN THE
BERING... WITH MULTIPLE SHORT WAVES ROTATING AROUND IT... AND A
RIDGE FROM THE NORTH PACIFIC TO SOUTHEAST ALASKA TO THE SOUTHERN
YUKON TERRITORY AND ON TO NORTH OF BARROW.

A FRONT FROM THE BERING LOW IS MOVING NORTH AND EAST THROUGH THE
MAINLAND TODAY... WITH WIDESPREAD SHOWERS IN THE COOLER AND MOISTER
AIRMASS BEHIND THE FRONT.  THESE SHOWERS WILL CONTINUE INTO
MIDWEEK... AND WILL BE OCCASIONALLY ENHANCED AS SHORTWAVES ROTATE
AROUND THE BERING LOW.  THE FRONT WILL ALSO PUSH THE RIDGE TO THE
SOUTHEAST AND FLATTEN IT... ALLOWING SOME SHOWERS TO RETURN TO
SOUTHEAST ALASKA.

...PRECIPITATION...

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

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
MCPA2    MCARTHUR PASS        PC RG :  2.98
CKLA2    CAPE KIAVAK RAWS     PC RG :  1.96
PEDA2    PEDERSEN LAGOON      PC RG :  1.92
CGMA2    CHIGMIT MOUNTAINS    PC RG :  1.84
SVRA2    SILVER SALMON LAKES  PC RG :  1.43
ILRA2    ILIAMNA RIVER        PC RG :  1.34
TLRA2    UPPER TALARIK CREEK  PC RG :  1.09
PADL     DILLINGHAM           PP RZ :  1.06
PADQ     KODIAK               PP RZ :  0.97
RESA2    RESURRECTION RIVER   PC RG :  0.83
PAIL     ILIAMNA              PP RZ :  0.67
PANW     NEW STUYAHOK         PP RZ :  0.64
SRVA2    STONY RIVER RAWS     PC RG :  0.55
PAIG     IGIUGIG              PP RZ :  0.48
PAWD     SEWARD               PP RZ :  0.45
PABE     BETHEL               PP RZ :  0.36
BTLA2    BOOTH LAKE RAWS      PC RG :  0.31
PAVC     KING COVE            PP RZ :  0.29
JBRA2    JBER                 PC RG :  0.29
ALSA2    PORT ALSWORTH RAWS   PC RG :  0.27

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES FOR ABOVE
NORMAL TEMPERATURES OVER THE WESTERN... NORTHERN... AND INTERIOR
MAINLAND.  THERE ARE INCREASED CHANCES FOR BELOW NORMAL TEMPERATURES
OVER THE AKPEN... KODIAK ISLAND... KENAI PENINSULA... AND ALONG THE
NORTH GULF COAST.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR
ABOVE NORMAL PRECIPITATION OVER MOST OF THE SOUTHERN MAINLAND AND
OVER SOUTHEAST ALASKA.  THERE ARE INCREASED CHANCES FOR BELOW NORMAL
PRECIPITATION OVER THE NORTHERN QUARTER OF THE MAINLAND.

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


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.