878  
FGAK78 PAFC 282202  
ESFAFC  
AKZ701>704-711>714-721>729-731-732-735-745>748-292100-  
 
HYDROLOGIC OUTLOOK  
NATIONAL WEATHER SERVICE ANCHORAGE AK  
202 PM AKDT THU AUG 28 2025  
 
...SIGNIFICANT RAINFALL THROUGH FRIDAY WILL BRING RIVER RISES AND  
LOCALIZED FLOOD POTENTIAL ACROSS SOUTHCENTRAL ALASKA...  
 
RAINFALL  
 
* EASTERN KENAI PENINSULA AND PRINCE WILLIAM SOUND: 1 TO 3 INCHES OF  
RAIN HAS ALREADY FALLEN AS OF THURSDAY AFTERNOON WITH ANOTHER 1 TO  
2  
INCHES POSSIBLE THROUGH FRIDAY. LOCALLY HIGHER AMOUNTS ARE  
POSSIBLE IN HIGHER TERRAIN.  
 
* MAT-SU: 1 TO 3 INCHES OF RAIN HAVE FALLEN AS OF THURSDAY AFTERNOON  
WITH ANOTHER 1 TO 2 INCHES OF RAIN EXPECTED THROUGH FRIDAY. THE  
HIGHEST AMOUNTS WILL BE ACROSS THE NORTHERN SUSITNA VALLEY AND  
ACROSS THE HIGHER TERRAIN OF THE TALKEETNAS. THE MATANUSKA VALLEY  
WILL GENERALLY RECEIVE 1 TO 2 INCHES OF TOTAL RAINFALL BY THE END  
OF THE EVENT, WITH THE HIGHER TOTALS OCCURING TOWARDS SUTTON AND  
CHICKALOON.  
 
* WESTERN KENAI PENINSULA AND ANCHORAGE: HALF AN INCH TO 1.5 INCHES  
HAS ALREADY FALLEN ACROSS MUCH OF THIS AREA AS OF THURSDAY  
AFTERNOON, WITH UPWARDS OF 3 INCHES IN ANCHOR POINT. ANOTHER HALF  
TO 1 INCH IS POSSIBLE THROUGH FRIDAY.  
 
HYDROLOGIC CONCERNS  
 
* SHARP RISES HAVE ALREADY BEEN NOTED ON MANY AREA STREAMS AND  
RIVERS. MANY SMALLER STREAMS WILL CREST THURSDAY NIGHT INTO FRIDAY  
WHILE LARGER RIVERS OR DOWNSTREAM POINTS MAY CREST FRIDAY AND  
SATURDAY. HIGHER THAN NORMAL WATER LEVELS MAY CONTINUE THROUGH  
LABOR DAY WEEKEND INTO NEXT WEEK.  
 
* MANY LOWER LOCATIONS ALONG RIVERS SUCH AS GRAVEL BARS AND OTHER  
SPOTS POPULAR FOR CAMPING AND RECREATING ARE LIKELY TO BECOME  
INUNDATED WITH WATER.  
 
* HEAVY RAIN MAY RESULT IN LOCALIZED PONDING IN LOW-LYING AREAS AND  
LOCATIONS WITH POOR DRAINAGE.  
 
NEXT STEPS  
 
* RESIDENTS ALONG AREA STREAMS AS WELL AS RIVER USERS AND  
RECREATIONISTS SHOULD ANTICIPATE HIGHER THAN NORMAL WATER LEVELS  
AND ARE ADVISED TO MONITOR WEATHER AND RIVER FORECASTS.  
 
* REPORTS ON RIVER CONDITIONS MAY BE SENT TO THE RIVER FORECAST  
CENTER BY CALLING 1-800-847-1739.  
 

 
 
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