520
FGAK78 PAFC 252348
ESFAFC
AKZ712-745>748-270000-
HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE ANCHORAGE AK
348 PM AKDT TUE AUG 25 2026
...MULTIPLE ROUNDS OF SIGNIFICANT RAINFALL THIS WEEK WILL BRING RIVER
RISES AND LOCALIZED FLOOD POTENTIAL TO THE SUSITNA VALLEY...
LOCATIONS:
* YENTNA AND SKWENTNA RIVER BASINS
* RIVERS, CREEKS, AND STREAMS WITH HEADWATERS ALONG THE WESTERN
TALKEETNA MOUNTAINS.
TIMING:
* FIRST ROUND - NOW THROUGH TOMORROW MORNING
* SECOND ROUND - LATE THURSDAY NIGHT THROUGH SATURDAY EVENING
RAINFALL:
* WIDESPREAD RAINFALL OF 0.5 TO 1.5 INCHES OF RAIN IS LIKELY (70-80%)
ACROSS THE SUSITNA VALLEY LATE MONDAY NIGHT THROUGH WEDNESDAY
MORNING. THE HIGHEST AMOUNTS ARE VERY LIKELY (80%-90%) TO OCCUR
FROM PETERSVILLE EAST TO TALKEETNA AND ALONG THE TALKEETNA
MOUNTAINS TO HATCHER PASS.
* ADDITIONAL WIDESPREAD RAINFALL OF 0.5 TO 1.5 INCHES OF RAIN IS
LIKELY (60-70%) ACROSS THE SUSITNA VALLEY LATE THURSDAY NIGHT
THROUGH SATURDAY EVENING. THERE IS A LOW CHANCE (20-30%) FOR
RAINFALL AMOUNTS HIGHER THAN 1.5" ACROSS FAR NORTHERN AND WESTERN
SUSITNA VALLEY.
* THERE IS A CHANCE (20-30%) OF AN ADDITIONAL 0.1 TO 0.2 INCHES OF
RAIN WITH ANY LINGERING SCATTERED SHOWERS WEDNESDAY AFTERNOON AND
EVENING.
HYDROLOGIC CONCERNS:
* EXPECT SHARP RISES ON MANY SMALL STREAMS AND RIVERS, INCLUDING THE
YENTNA AT LAKE CREEK.
* MANY LOWER LOCATIONS ALONG RIVERS SUCH AS GRAVEL BARS AND OTHER
SPOTS POPULAR FOR CAMPING AND RECREATING MAY BECOME INUNDATED WITH
WATER WITH RIVERS REACHING BANKFULL CONDITIONS.
* 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 RECREATORS
SHOULD ANTICIPATE HIGHER THAN NORMAL WATER LEVELS AND ARE ADVISED
TO MONITOR WEATHER AND RIVER FORECASTS.
* SEND WEATHER OR FLOODING REPORTS TO INWS.NCEP.NOAA.GOV/REPORT/ OR
BY CALLING 1-907-266-5127.
* REPORTS ON RIVER CONDITIONS MAY BE SENT TO THE RIVER FORECAST
CENTER BY CALLING 1-907-266-5160.
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