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
000
AGAK78 PACR 232240
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT THU OCT 23 2014

...FLOOD POTENTIAL...

FLOOD POTENTIAL IS CURRENTLY LOW FOR THE STATE OF ALASKA.

...HYDROMETEOROLOGICAL DISCUSSION...

THE UPPER LEVEL PATTERN THIS MORNING WAS DOMINATED BY A TROUGH IN
THE EASTERN GULF AND NORTHEASTERN PACIFIC... A RIDGE FROM THE NORTH
PACIFIC INTO THE WESTERN INTERIOR... AND ANOTHER LOW IN SIBERIA.
THERE IS AN UPPER LOW EMBEDDED IN THE TROUGH... THIS LOW WILL BE
NEARLY STATIONARY THROUGH FRIDAY.  THE RIDGE WILL MOVE SOUTHEASTWARD
AND BE FLATTENED AS SHORTWAVES BREAK OFF FROM THE SIBERIAN LOW AND
MOVE INTO THE WESTERN MAINLAND.

FREEZING LEVELS WERE AT THE SURFACE OVER MOST OF THE MAINLAND THIS
MORNING... RISING TO 3000-4300 FT FROM KODIAK TO YAKUTAT TO ANNETTE.
FREEZING LEVELS ARE NOT EXPECTED TO 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
======== ====                 == ==   =====
KKEA2    KAKE RAWS            PC RG :  0.61
SHLA2    SHELTER COVE RAWS    PC RG :  0.59
PAKT     KETCHIKAN            PP RZ :  0.59
SRYA2    SITUK RIVER          PC RG :  0.50
BGLA2    BERING GLACIER RAWS  PC RG :  0.43
PANT     ANNETTE              PP RZ :  0.42
PACV     CORDOVA              PP RZ :  0.35
THOA2    THORNE BAY RAWS      PC RG :  0.31
HONA2    HOONAH RAWS          PC RG :  0.31
HADA2    HAIDA RAWS           PC RG :  0.31
PAYA     YAKUTAT              PP RZ :  0.28

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER MOST OF THE MAINLAND... AND INCREASED
CHANCES FOR BELOW NORMAL TEMPERATURES OVER MOST OF SOUTHEAST ALASKA.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR
ABOVE NORMAL PRECIPITATION OVER MOST OF THE MAINLAND.  THERE ARE
INCREASED CHANCES FOR BELOW NORMAL PRECIPITATION OVER 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

$$

ACL



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