218  
AGAK78 PACR 192104  
HMDACR  
 
HYDROMETEOROLOGICAL DISCUSSION  
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK  
300 PM AKDT FRI SEP 19 2014  
   
..FLOOD POTENTIAL
 
 
 
THE APPROACH OF A SYSTEM IN THE GULF BROUGHT GOOD RAINFALL AMOUNTS  
ACROSS MUCH THE UPPER COOK INLET... NORTH GULF AND SOUTHEAST.  
SMALLER STREAMS RESPONDED WITH RAPID RISES IN WATER LEVELS IN THOSE  
AREAS.  
 
FLOOD POTENTIAL IS LOW OVER THE REST OF THE STATE.  
   
..HYDROMETEOROLOGICAL DISCUSSION
 
 
 
THE MAIN UPPER TROUGH NOW IN THE WESTERN GULF SPUN THE FIRST BIG  
WAVE THAT PUSHED THROUGH THE NORTHWESTERN PORTION OF THE PANHANDLE  
ON THURSDAY. THIS OPENS THE DOOR FOR STRONG SOUTHWESTERLY FLOW TO  
DEVELOP ALOFT AND A POTENTIAL SURFACE FEATURE THAT REACHES THE  
SOUTHERN SOUTHEAST EARLY SATURDAY MORNING. HEAVY RAIN IS EXPECTED IN  
THIS AREA AT THAT TIME THEN BEGINS TO TRANSITION NORTH THROUGH THE  
PANHANDLE AS THE MAIN TROUGH SWINGS NORTH... CHANGING THE  
ORIENTATION OF THE ONSHORE FLOW TO MORE OF A SOUTHEASTERLY  
DIRECTION. THIS IS EXPECTED TO PUSH WATER LEVELS UP ONCE AGAIN ON  
SUNDAY WITH SMALLER STREAMS RESPONDING RAPIDLY.  
 
THIS MORNINGS FREEZING LEVELS RANGED FROM 4900 FT AT MCGRATH TO 8100  
FT AT FAIRBANKS OVER THE MAINLAND... FALLING DRASTICALLY TO JUST  
OVER 500 FT AT BARROW. OVER THE SOUTHERN COASTAL LOCATIONS VALUES  
RANGED AROUND 6000 FT.  
 
PRECIPITATION... SELECTED PRECIPITATION TOTALS OVER THE 24 HOURS  
ENDING AT 4 AM TODAY:  
 
LOCATION NAME PE TS 24 HR  
======== ==== == == =====  
PATO PORTAGE GLACIER PP RZ : 3.87  
PECA2 PELICAN PP RZ : 3.36  
SPPA2 SNETTISHAM POWER PLA PP RZ : 2.60  
WLCA2 WOLVERINE CREEK NR L PP RG : 2.46  
LLKA2 LONG LAKE SNOTEL PC RM : 2.30  
SHLA2 SHELTER COVE RAWS PP RG : 2.25  
GRVA2 GRANDVIEW SNOTEL PC RM : 1.90  
PAKT KETCHIKAN PP RZ : 1.86  
HRDA2 HARDING ICE FIELD PC RG : 1.84  
HADA2 HAIDA RAWS PC RG : 1.74  
NUCA2 NUCHEK PC RM : 1.70  
HRDA2 HARDING ICE FIELD PP RG : 1.56  
ZMBA2 ZAREMBO ISLAND SOUTH PC RG : 1.52  
TUGA2 TURNAGAIN PASS SNOTE PC RM : 1.50  
RESA2 RESURRECTION RIVER A PP RG : 1.44  
GDWA2 GIRDWOOD FIRE STATIO PC RG : 1.44  
EXGA2 EXIT GLACIER PC RZ : 1.43  
ALSQ9 ALSEK RIVER ABOVE BA PP RG : 1.42  
TKVA2 TOKOSITNA VALLEY PC RM : 1.40  
SOUA2 SOULE RIVER NEAR HYD PC RG : 1.40  
GDWA2 GIRDWOOD FIRE STATIO PP RG : 1.39  
SIKA2 SITKA CRN PP RZ : 1.36  
TKVA2 TOKOSITNA VALLEY PC RZ : 1.35  
SIKA2 SITKA CRN PP RG : 1.33  
SWNA2 SWANSON RIVER RAWS PC RG : 1.25  
PASI SITKA PP RZ : 1.25  
RUGA2 RUTH GLACIER RAWS PP RG : 1.22  
BLSA2 BENTALIT LODGE HANDA PP RG : 1.19  
SKLA2 KENAI RIVER BLW SKIL PP RG : 1.16  
URLA2 UPPER RUSSIAN LAKE R PC RG : 1.12  
SGSA2 SKILAK GUARD STATION PC RG : 1.11  
MFBA2 MIDDLE FORK BRADLEY PC RM : 1.10  
KMPA2 KENAI MOOSE REFUGE S PC RM : 1.10  
GCRA2 GROUSE CREEK DIVIDE PC RM : 1.10  
PAHN HAINES LANDING STRIP PP RZ : 1.09  
KMPA2 KENAI MOOSE REFUGE S PC RZ : 1.06  
KNMA2 AK KENAI 29 ENE PP RZ : 1.05  
SGSA2 SKILAK GUARD STATION PP RG : 1.03  
HONA2 HOONAH RAWS PC RG : 1.01  
PEDA2 PEDERSEN LAGOON PP RG : 1.00  
 
   
..LONG RANGE
 
 
 
THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE  
NORMAL TEMPERATURES OVER THE AKPEN... EXTREME WESTERN PORTION  
OF THE MAINLAND... NORTH GULF AND THE PANHANDLE.  
 
THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR  
ABOVE NORMAL PRECIPITATION OVER THE PANHANDLE.  
 
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  
 

 
 
ETH  
 
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