735  
FGAK78 PAFC 272238  
ESFAFC  
AKZ701>704-711>714-721>729-731-732-735-745>748-282315-  
 
HYDROLOGIC OUTLOOK  
NATIONAL WEATHER SERVICE ANCHORAGE AK  
238 PM AKDT WED AUG 27 2025  
 
...SIGNIFICANT RAINFALL THROUGH FRIDAY WILL BRING RIVER  
RISES AND LOCALIZED FLOOD POTENTIAL ACROSS SOUTHCENTRAL ALASKA...  
 
RAINFALL  
 
* EASTERN KENAI PENINSULA AND PRINCE WILLIAM SOUND: 2 TO 5 INCHES  
WITH LOCALLY HIGHER AMOUNTS IN HIGHER TERRAIN.  
 
* MAT-SU VALLEY: 1.5 TO 4 INCHES WITH LOCALLY HIGHER AMOUNTS. THE  
HIGHEST RAINFALL TOTALS ARE LIKELY TO BE ACROSS THE NORTHERN  
SUSITNA VALLEY.  
 
* WESTERN KENAI PENINSULA AND ANCHORAGE: 1 TO 2 INCHES OF RAINFALL  
WITH THE HEAVIEST RAINFALL OCCURING ADJACENT TO COOK INLET.  
DOWNSLOPING AT TIMES MAY RESULT IN LOCALIZED LOWER AMOUNTS  
IMMEDIATELY WEST OF THE MOUNTAINS.  
 
HYDROLOGIC CONCERNS  
 
* EXPECT SHARP RISES ON MANY SMALL 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.  
 
CONFIDENCE AND NEXT STEPS  
 
* CONFIDENCE IS HIGH THAT A MULTI-DAY HEAVY RAINFALL EVENT WILL  
OCCUR ACROSS SOUTHCENTRAL ALASKA, WITH THE NORTHERN SUSITNA VALLEY  
AND PRINCE WILLIAM SOUND RECEIVING THE HEAVIEST RAINFALL.  
CONFIDENCE IS MEDIUM REGARDING RAINFALL TOTALS AND PLACEMENT OF  
HEAVIEST RAINFALL. IF FORECAST RAINFALL TOTALS HOLD OR INCREASE,  
FLOOD WATCHES MAY BE NEEDED FOR PORTIONS OF THE KENAI PENINSULA,  
MAT-SU VALLEY, OR ELSEWHERE.  
 
* 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.  
 
 
 
BROWN  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab AK Page
Main Text Page