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
000
AGAK78 PACR 312245
HMDACR

AGAK78 PACR DDHHMM
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT THU JUL 31 2014

...FLOOD POTENTIAL...

FLOOD POTENTIAL IS CURRENTLY LOW FOR THE STATE.

...HYDROMETEOROLOGICAL DISCUSSION...

THIS MORNING THE UPPER LEVEL PATTERN IS STILL DOMINATED BY AN OMEGA
BLOCK... WITH A RIDGE OVER THE CENTRAL ALEUTIANS... CENTRAL AND
EASTERN BERING SEA... AND THE WESTERN MAINLAND... AND LOWS IN THE
SOUTHEASTERN GULF/NORTH PACIFIC AND SOUTHWEST OF THE WESTERN
ALEUTIANS.  OVER THE NEXT COUPLE OF DAYS THE OMEGA BLOCK WILL REMAIN
NEARLY STATIONARY AS A LOW NORTH OF WRANGEL ISLAND MOVES EAST OVER
THE TOP OF THE RIDGE AND OPENS INTO A TROUGH NEAR THE NORTHERN ALCAN
BORDER BY SATURDAY MORNING.  THIS LOW... AND ASSOCIATED SURFACE
WAVES... WILL BRING PRECIPITATION TO MUCH OF MAINLAND FROM THURSDAY
INTO THE WEEKEND.

FREEZING LEVELS THIS MORNING WERE BETWEEN 10200 AND 12000 FT ALONG
AND WEST OF A LINE FROM BETHEL TO MCGRATH TO KOTZEBUE... LOWERING TO
BETWEEN 8600 AND 9800 FT OVER THE REST OF THE STATE.  OVER THE NEXT
COUPLE OF DAYS THE FREEZING LEVELS WILL NOT CHANGE MUCH.

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

LOCATION NAME                 PE TS    24 HR
======== ====                 == ==    =====
KKEA2    KAKE RAWS            PC RG :  0.50
THOA2    THORNE BAY RAWS      PC RG :  0.16
PATE     TELLER               PP RZ :  0.14
PAOM     NOME                 PP RZ :  0.13
QRZA2    QUARTZ CREEK RAWS    PC RG :  0.12

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES ACROSS MOST OF THE STATE.  THE EXCEPTION IS A
PORTION OF THE SOUTHEAST MAINLAND... NORTH ALONG THE ALCAN BORDER...
AND SOUTH OVER NORTHERN SOUTHEAST... WHERE THE OUTLOOK IS FOR NEAR
NORMAL TEMPERATURES.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES OF BELOW
NORMAL PRECIPITATION FOR THE NORTHERN HALF OF THE MAINLAND AND FOR
THE YUKON DELTA REGION.  THERE ARE INCREASED CHANCES OF ABOVE NORMAL
PRECIPITATION FROM THE AKPEN REGION ACROSS SOUTHCENTRAL AND THE
SOUTHEAST MAINLAND TO NORTHERN SOUTHEAST ALASKA.

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

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.