520
WGAK48 PAFC 102011
FLWAFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE ANCHORAGE AK
1211 PM AKDT SUN SEP 10 2023
AKZ121-172000-
/O.NEW.PAFC.FA.W.0011.230910T2011Z-230917T2000Z/
/00000.0.GO.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WESTERN KENAI PENINSULA AK-
1211 PM AKDT SUN SEP 10 2023
...FLOOD WARNING FOR A GLACIER-DAMMED LAKE OUTBURST IN EFFECT UNTIL
NOON AKDT SUNDAY ALONG KENAI RIVER...
..REPLACES FLOOD ADVISORY
* WHAT...FLOODING CAUSED BY A GLACIER-DAMMED LAKE OUTBURST IS
EXPECTED.
* WHERE...KENAI RIVER BELOW SKILAK LAKE, INCLUDING KENAI KEYS.
* WHEN...UNTIL NOON AKDT SUNDAY SEP 17.
* IMPACTS...FLOODING OF KENAI RIVER AND FLOOD-PRONE LOCATIONS IS
IMMINENT OR OCCURRING.
* ADDITIONAL DETAILS...
- AT 1201 PM AKDT, RIVER GAUGE REPORTS AND SATELLITE DATA
INDICATE RISES IN WATER LEVELS FROM TWO GLACIER-DAMMED LAKE
OUTBURSTS ACROSS THE WARNED AREA, INCLUDING ONE FROM THE
RELEASE OF SNOW GLACIER-DAMMED LAKE OUTBURST THAT OCCURRED
NEAR SNOW RIVER AND COMPOUNDED BY THE ADDITIONAL RELEASE
OCCURRING FROM SKILAK GLACIER-DAMMED LAKE OUTBURST. RIVER
RISES WILL CAUSE FLOODING ALONG THE KENAI RIVER.
- WATER LEVELS ALONG THE KENAI RIVER WILL CONTINUE TO INCREASE
THROUGHOUT THIS WEEK. HIGH WATER LEVELS ARE EXPECTED FURTHER
DOWNSTREAM IN THE LOWER KENAI RIVER, BUT FLOODING IS NOT
EXPECTED FOR THE LOWER KENAI RIVER AT THIS TIME.
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
- FOR KENAI RIVER BELOW SKILAK LAKE:
AT 10:30AM THE STAGE WAS 12.97 FEET.
FLOOD STAGE IS 13.0 FEET.
FORECAST: A WATER LEVEL OF AROUND 14.1 FEET IS EXPECTED
AROUND 10:00PM WEDNESDAY.
IMPACTS:
AT 8.4 FEET: LOW WATER LEVEL -- CLASS I WHITEWATER BELOW
SKILAK LAKE
AT 10.4 FEET: MEDIUM WATER LEVEL -- CLASS I WHITEWATER BELOW
SKILAK LAKE
AT 11.4 FEET: HIGH WATER LEVEL -- CLASS II WHITEWATER BELOW
SKILAK LAKE
AT 15.0 FEET: WATER INUNDATES THE KENAI KEYS NEIGHBORHOOD.
- FOR KENAI RIVER AT KENAI KEYS:
AT 8:00AM THE STAGE WAS 10.65 FEET.
FLOOD STAGE IS 11.0 FEET.
FORECAST: A WATER LEVEL OF 11.1 FEET IS EXPECTED AROUND
10:00PM TUESDAY.
IMPACTS:
AT 10.7 FEET: IN OCTOBER OF 2020, WATER WAS IN THE LOWEST
LYING GARAGES OF THE KENAI KEYS SUBDIVISION.
AT 12.0 FEET: WATER STARTS TO FLOW OVER SOME OF THE ROADS IN
THE KENAI KEYS SUBDIVISION.
AT 13.2 FEET: IN 2012, WATER WAS 2 FEET DEEP OVER KENAI KEYS
ROAD, NEAR THE ENTRANCE TO THE SUBDIVISON.
AT 13.5 FEET: WATER STARTS TO FLOW INTO GARAGES AND CABINS IN
THE KENAI KEYS SUBDIVISION; AND LIKELY FLOODING DOWNSTREAM.
- INHERENT UNCERTAINTY IN INITIAL GLACIER LAKE VOLUME WILL
RESULT IN VARYING CREST HEIGHT AND TIMING.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
LAT...LON 6047 15049 6046 15052 6045 15058 6052 15074
6052 15077 6053 15079 6054 15077 6054 15073
6048 15057 6047 15057
VR
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