323  
AGAK78 PACR 232146  
HMDACR  
 
HYDROMETEOROLOGICAL DISCUSSION  
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK  
300 PM AKDT SAT JUL 23 2016  
   
..FLOOD POTENTIAL
 
 
 
CONVECTIVE STORMS IN THE TANANA BASIN PRODUCED SOME SIGNIFICANT  
RAINFALL TOTALS LAST WEEK LEADING TO RISES ON MANY STREAMS DRAINING  
THE YUKON-TANANA UPLANDS AS WELL AS THE TANANA RIVER. RAIN HAS  
CONTINUED INTO THIS WEEK AS WELL PUSHING WATER LEVELS HIGHER ONCE  
AGAIN. A FLOOD ADVISORY IS IN EFFECT FOR THE CHENA RIVER UPSTREAM OF  
THE MOOSE CREEK DAM. THE FLOOD CONTROL PROJECT IS OPERATING AND  
HELPING TO REGULATE THE FLOW ON THE CHENA RIVER. THE FLOOD ADVISORY  
REMAINS IN EFFECT THROUGH THROUGH 245 PM AKDT SUNDAY THE 24TH.  
PLEASE REFER TO THE ADVISORY FOR FURTHER INFORMATION.  
 
IT APPEARS THAT THE SUMMIT LAKE GLACIER DAMMED LAKE IS RELEASING  
INTO THE SALMON RIVER NEAR HYDER. THE RIVER HAS RISEN DRAMATICALLY  
OVER THE LAST COUPLE OF DAYS BUT APPEARS TO HAVE PEAKED EARLY  
SATURDAY MORNING. PLEASE REFER TO THE SPECIAL WEATHER STATEMENT FOR  
FURTHER INFORMATION.  
 
LASTLY, WITH FORECAST RAINFALL OF AROUND AN INCH DURING THE DAY ON  
SATURDAY, WATER LEVELS IN THE TAIYA BASIN ARE EXPECTED TO REACH  
MINOR FLOOD STATE. PLEASE REFER TO THE FLOOD ADVISORY FOR FURTHER  
INFORMATION.  
 
THE FLOOD POTENTIAL FOR THE REMAINDER OF THE STATE IS CURRENTLY LOW.  
   
..HYDROMETEOROLOGICAL DISCUSSION
 
THE UPPER LEVEL PATTERN IS  
DOMINATED BY A CLOSED LOW THAT HAS MOVED INTO THE GULF FROM THE  
BERING SEA. THIS TRANSITION BROUGHT A WETTING RAIN TO MUCH OF THE  
SOUTHERN MAINLAND AND EVEN THE SOUTHEAST, WHERE SOMEWHAT OF A  
DROUGHT HAS DEVELOPED DURING THE MONTH OF JULY. THIS LOW CONTINUES  
IS EASTWARD PROGRESSION AND ENTERS CANADA BY LATE SATURDAY NIGHT OR  
EARLY SUNDAY MORNING. RAIN, HEAVY AT TIMES, IS IN STORE FOR MUCH OF  
THE SOUTHEAST AND THE NORTHEAST GULF COAST ON SATURDAY. MEANWHILE  
THE THE NEXT SYSTEM DROPPING IN FROM THE NORTH OVER THE WEST AND  
INTO THE SOUTHWEST BEARS SOME WATCHING. DECENT DYNAMICS WILL DRIVE  
RAINFALL ACROSS MUCH OF THE SOUTHWEST AND SOUTHCENTRAL SATURDAY AND  
INTO SUNDAY.  
 
IN THE LONGER RANGE, THE LOW IN THE WEST CONTINUES TO DIG INTO THE  
WESTERN GULF EARLY NEXT WEEK HELPING TO CARVE OUT A LARGE TROUGH  
OVER THE STATE BY TUESDAY. ABUNDANT MOISTURE AND SHORT WAVE ACTIVITY  
STREAMING INTO THE SOUTHCENTRAL, NORTH GULF AND SOUTHEAST MEANS  
WET CONDITIONS CONTINUE.  
   
..PRECIPITATION
 
 
SELECTED PRECIPITATION TOTALS OVER THE PAST 24 HOURS ENDING AT 4 AM  
TODAY:  
 
LOCATION NAME PE TS 24 HR  
======== ==== == == =====  
SAWA2 SPEEL ARM STATION PC RZ : 2.31  
PEDA2 PEDERSEN LAGOON PC RG : 1.55  
LLKA2 LONG LAKE SNOTEL PC RM : 1.50  
NUCA2 NUCHEK PC RM : 1.40  
PPSA2 POWDER PATCH STATION PC RZ : 1.38  
MFBA2 MIDDLE FORK BRADLEY PC RM : 1.30  
WLCA2 WOLVERINE CREEK NR L PP RG : 1.22  
KCKA2 KACHEMAK CREEK PC RM : 1.10  
PAWD SEWARD PP RZ : 1.09  
SRFA2 STRAWBERRY REEF PC RM : 1.00  
PSJA2 PORT SAN JUAN PC R2 : 1.00  
ECEA2 EAGLECREST TOP CWOP PP RZ : 0.97  
DBWA2 DRY BAY GLACIER BAY PP RG : 0.95  
GNLA2 NUNATAK LOWER GLACIE PC RG : 0.92  
RESA2 RESURRECTION RIVER A PP RG : 0.91  
SLVA2 SILVIS POWERHOUSE PP RZ : 0.90  
LKCA2 LOWER KACHEMAK CREEK PC RM : 0.90  
GCRA2 GROUSE CREEK DIVIDE PC RM : 0.90  
EYKA2 MT EYAK PC RM : 0.90  
LCRA2 LITTLE CHENA RIDGE S PP RG : 0.83  
JSBA2 SUICIDE BASIN PP RZ : 0.83  
SHLA2 SHELTER COVE RAWS PP RG : 0.81  
NUKA2 NUKA GLACIER SNOTEL PC RM : 0.80  
GRVA2 GRANDVIEW SNOTEL PC RM : 0.80  
EXGA2 EXIT GLACIER PC R2 : 0.79  
HMEA2 HOMER RAWS PP RG : 0.78  
MHPA2 MITKOF HWY PETERSBUR PP RZ : 0.77  
SNOA2 SNOW RIVER NR SEWARD PP RG : 0.75  
SDIA2 SOUTH DOUGLAS PC RZ : 0.73  
PATO PORTAGE GLACIER PP RZ : 0.73  
SRYA2 SITUK RIVER NR YAKUT PP RG : 0.70  
PAYA YAKUTAT PP RZ : 0.70  
HILA2 ANCHORAGE HILLSIDE PC RM : 0.70  
GNLA2 NUNATAK LOWER GLACIE PP RG : 0.70  
EXGA2 EXIT GLACIER PC RM : 0.70  
ETBA2 EAGLECREST PTARMIGAN PP RZ : 0.68  
CBHA2 CORDOVA BOAT HARBOR PC RP : 0.68  
GRVA2 GRANDVIEW SNOTEL PC R2 : 0.67  
HAYA2 HAYCOCK RAWS NR KOYU PP RG : 0.66  
KSNA2 KING SALMON 42 SE PP RG : 0.63  
SILA2 CARIBOU HILLS PP RG : 0.62  
MNDA2 MENDENHALL LAKE LEVE PP RG : 0.62  
URLA2 UPPER RUSSIAN LAKE R PP RG : 0.61  
KNMA2 KENAI 29 ENE PP RG : 0.61  
PXKA2 PAXSON RAWS PP RG : 0.60  
PAMR MERRILL FIELD PP RZ : 0.60  
KNMA2 KENAI 29 ENE PC RG : 0.60  
INPA2 INDIAN PASS SNOTEL PC RM : 0.60  
GGLA2 GATES GLACIER PC RG : 0.60  
CORA2 COOPER LAKE SNOTEL PC RM : 0.60  
PAJK JUNEAU WFO PP RZ : 0.59  
   
..LONG RANGE
 
 
THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED PROBABILITIES OF  
ABOVE NORMAL TEMPERATURES OVER THE SOUTHERN COAST INCLUDING THE  
PANHANDLE AND ALASKA PENINSULA.  
 
THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED PROBABILITIES OF  
ABOVE NORMAL PRECIPITATION OVER MOST OF THE STATE EXCEPT MAYBE THE  
SOUTHERN PANHANDLE.  
 
PLEASE REFER TO THE CLIMATE PREDICTION CENTER HOME PAGE FOR FURTHER  
INFORMATION.  
   
................................................................
 
 
THIS TEXT PRODUCT WILL BE ISSUED DAILY UNTIL FREEZEUP IN THE FALL. A  
GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS AVAILABLE AT  
HTTP://WWW.WEATHER.GOV/APRFC/GRAPHICALHMD  
 

 
 
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