000
AGAK78 PACR 222312 AAA
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT WED MAY 22 2013

...FLOOD POTENTIAL...

THE ICE JAM UPSTREAM OF FORT YUKON REMAINS IN PLACE TODAY... BUT
WATER IS MOVING AROUND THE JAM AND THROUGH A SMALL BREACH IN THE
JAM.  THE RISK OF MODERATE OR MAJOR FLOODING IN FORT YUKON HAS BEEN
REDUCED SIGNIFICANTLY... BUT MINOR FLOODING IS EXPECTED TO CONTINUE.

SEE THE BREAKUP MAP AND THE BREAKUP SUMMARY FOR CURRENT BREAKUP
ACTIVITY... INCLUDING FLOOD WATCHES AND WARNINGS.

THE POTENTIAL FOR NON-BREAKUP RELATED FLOODING IS CURRENTLY LOW
FOR THE STATE OF ALASKA.

...HYDROMETEOROLOGICAL DISCUSSION...

AN UPPER LEVEL LOW PRESSURE IN THE BERING SEA IS CONTINUING TO PUSH
SOME PRECIPITATION INTO SOUTHWEST ALASKA AND UP THE WEST COAST.  AN
UPPER LEVEL HIGH PRESSURE RIDGE HAS KEPT SUNNY SKIES AND WARMER
TEMPERATURES OVER THE EASTERN PORTION OF THE STATE AND THE
PANHANDLE. THE FRONT IN THE WEST WILL WEAKEN TODAY AS IT SLOWLY
MOVES INTO THE CENTRAL MAINLAND... THE FAR EASTERN MAINLAND AND THE
PANHANDLE SHOULD REMAIN DRY.

FREEZING LEVELS WERE NEAR THE SURFACE ACROSS MOST OF THE STATE OVER
THE PAST WEEKEND... BUT HAVE NOW CLIMBED TO BETWEEN 3000 AND 5400
FEET.

SELECTION OF PRECIPITATION TOTALS FOR 24 HOURS ENDING AT 4AM:

LOCATION NAME                 PE TS    24 HR
======== ====                 == ==
PACM     SCAMMON BAY          PP RZ :  0.85
PAOM     NOME                 PP RZ :  0.81
PACD     COLD BAY             PP RZ :  0.32
PAVL     KIVALINA             PP RZ :  0.31

...FORECAST PRECIPITATION...

LIGHT PRECIPITATION IS EXPECTED OVER MOST OF WESTERN ALASKA TODAY...
WITH MAINLY SHOWERY PRECIPITATION LIKELY ON FRIDAY.

...QUANTITATIVE PRECIPITATION FORECASTS (QPF) GRIDS...

DAY 1-3 QPF GRIDS WERE BASED ON A BLEND OF THE NAM AND GFS... WITH
SOME MANUAL EDITS.  DAY 4-7 QPF GRIDS WERE BASED ON THE GFS... WITH
OCCASIONAL MANUAL EDITS.

...LONG RANGE...
THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER ALL OF THE MAINLAND AND THE PANHANDLE.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES OF BELOW
NORMAL PRECIPITATION OVER ALL OF THE MAINLAND AND SOUTHEAST ALASKA.

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

THE HYDROMET DISCUSSION WILL BE ISSUED EVERY DAY 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

000
AGAK78 PACR 212311 AAA
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT TUE MAY 21 2013

...FLOOD POTENTIAL...

THE YUKON RIVER BREAKUP FRONT REMAINED 12 MILES UPSTREAM OF
FORT YUKON AT NOON TUESDAY. THE VILLAGE OF FORT YUKON COULD
POSSIBLE EXPERIENCE MODERATE OR MAJOR FLOODING.

SEE THE BREAKUP MAP AND THE BREAKUP SUMMARY FOR CURRENT BREAKUP
ACTIVITY... INCLUDING FLOOD WATCHES AND WARNINGS.

THE POTENTIAL FOR NON-BREAKUP RELATED FLOODING IS CURRENTLY LOW
FOR THE STATE OF ALASKA.

...HYDROMETEOROLOGICAL DISCUSSION...

LOW PRESSURE IN THE BERING SEA IS PUSHING RAIN AND SNOW INTO
SOUTHWEST ALASKA AND UP THE WEST COAST. A HIGH PRESSURE RIDGE HAS
KEPT SUNNY SKIES AND WARMER TEMPERATURES OVER THE EASTERN HALF
OF THE STATE AND THE PANHANDLE. THE FRONT IN THE WEST WILL WEAKEN
AS IT SLOWLY MOVES EAST INTO THE CENTRAL MAINLAND. THE FAR EASTERN
MAINLAND AND THE PANHANDLE SHOULD REMAIN DRY.

FREEZING LEVELS WERE NEAR THE SURFACE ACROSS MOST OF THE STATE
OVER THE WEEKEND BUT HAVE NOW CLIMBED TO BETWEEN 4000 AND 6000
FEET.


SELECTION OF PRECIPITATION TOTALS FOR 24 HOURS ENDING AT 4AM:

LOCATION NAME                 PE TS    24 HR
======== ====                 == ==
PACD     COLD BAY             PP RZ :   0.93
PAVC     KING COVE            PP RZ :   0.64


...FORECAST PRECIPITATION...

THE HEAVIEST PRECIPITATION TOTALS (0.5+) SHOULD FALL ACROSS THE
WESTERN COAST TODAY WITH ONLY LIGHT PRECIPITATION EXPECTED WEDNESDAY
AND THURSDAY.

...QUANTITATIVE PRECIPITATION FORECASTS (QPF) GRIDS...

DAY 1-3 QPF GRIDS WERE BASED ON A BLEND OF THE NAM AND GFS... WITH
SOME MANUAL EDITS. DAY 5-7 QPF GRIDS WERE BASED ON THE GFS... WITH
OCCASIONAL MANUAL EDITS.

...LONG RANGE...
THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER ALL OF THE MAINLAND AND THE PANHANDLE.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES OF BELOW
NORMAL PRECIPITATION OVER ALL OF THE MAINLAND AND SOUTHEAST ALASKA.

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

THE HYDROMET DISCUSSION WILL BE ISSUED EVERY DAY 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

$$

JEP

000
AGAK78 PACR 202318 AAA
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT MON MAY 20 2013

...FLOOD POTENTIAL...

THE YUKON RIVER BREAKUP FRONT WAS 12 MILES UPSTREAM OF FORT YUKON
AT NOON MONDAY. THE VILLAGE OF FORT YUKON COULD POSSIBLE EXPERIENCE
MAJOR FLOODING.

SEE THE BREAKUP MAP AND THE BREAKUP SUMMARY FOR CURRENT BREAKUP
ACTIVITY... INCLUDING FLOOD WATCHES AND WARNINGS.

THE POTENTIAL FOR NON-BREAKUP RELATED FLOODING IS CURRENTLY LOW
FOR THE STATE OF ALASKA.

...HYDROMETEOROLOGICAL DISCUSSION...

VERY LITTLE RAINFALL ACTIVITY.. HOWEVER.. A HIGH PRESSURE RIDGE INTO
THE INTERIOR HAS CAUSED SUNNY SKIES AND WARMER TEMPERATURES. OVER
THE WEEKEND MUCH OF THE INTERIOR REMAINED BELOW FREEZING. TODAY SOME
SITES HAVE ALREADY WARMED INTO THE 50S AND THEY SHOULD REACH THE 60S
AND LOWER 70S IN A COUPLE OF DAYS.

THE HIGH PRESSURE RIDGE WILL KEEP MOST OF THE MAINLAND DRY THROUGH
MUCH OF THE WEEK. THE EXCEPTION IS THE WEST COAST WHERE LOWS IN THE
BERING WILL SPREAD RAIN AND SNOW NORTH.

SELECTION OF PRECIPITATION TOTALS FOR 24 HOURS ENDING AT 4AM:

LOCATION NAME                 PE TS    24 HR
======== ====                 == ==

NO STATIONS REPORTED SIGNIFICANT PRECIPITATION YESTERDAY.


...FORECAST PRECIPITATION...

ONLY LIGHT RAIN AND SNOW IS EXPECTED ALONG THE WEST COAST TUESDAY.

...QUANTITATIVE PRECIPITATION FORECASTS (QPF) GRIDS...

DAY 1-3 QPF GRIDS WERE BASED ON A BLEND OF THE NAM AND GFS... WITH
SOME MANUAL EDITS. DAY 5-7 QPF GRIDS WERE BASED ON THE GFS... WITH
OCCASIONAL MANUAL EDITS.

...LONG RANGE...
THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER ALL OF THE MAINLAND AND THE PANHANDLE.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES OF BELOW
NORMAL PRECIPITATION OVER THE MAJORITY OF THE MAINLAND AND SOUTHEAST
ALASKA.

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

THE HYDROMET DISCUSSION WILL BE ISSUED EVERY DAY 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

$$

JEP