HYDROLOGIC OUTLOOK
HYDROLOGIC OUTLOOK ISSUED AUGUST 23 AT 1:53PM AKDT
Effective: 2026-08-23 13:53:00 Expires: 2026-08-24 16:00:00 Issued by: NWS Anchorage AK
LOCATIONS: * YENTNA AND SKWENTNA RIVER BASINS * RIVERS, CREEKS, AND STREAMS WITH HEADWATERS ALONG THE WESTERN TALKEETNA MOUNTAINS.

TIMING:

* FIRST ROUND - LATE MONDAY NIGHT THROUGH WEDNESDAY 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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HATCHER PASS, WESTERN SUSITNA VALLEY, SOUTHERN SUSITNA VALLEY, CENTRAL SUSITNA VALLEY, NORTHERN SUSITNA VALLEY
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