Flood Warning
Issued by NWS

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000
WGAK47 PAJK 101818 CCA
FLWAJK

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE JUNEAU AK
1018 AM AKDT THU JUL 10 2014

AKZ025-130600-
/O.EXT.PAJK.FA.W.0005.000000T0000Z-140713T0600Z/
/00000.0.GO.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JUNEAU BOROUGH AND NORTHERN ADMIRALTY ISLAND AK-
1018 AM AKDT THU JUL 10 2014

THE NATIONAL WEATHER SERVICE IN JUNEAU HAS EXTENDED THE

* FLOOD WARNING DUE TO A GLACIAL LAKE OUTBURST FOR MENDENHALL LAKE
AND MENDENHALL RIVER IN JUNEAU THROUGH SATURDAY

* UNTIL 10 PM AKDT SATURDAY

* AT 9 AM AKDT THURSDAY THE WATER LEVEL AT MENDENHALL LAKE WAS 6.5
FEET AND RISING. IT IS FORECAST TO REACH FLOOD STAGE OF 9.0 FEET
AROUND 6 AM FRIDAY AND PEAK AT 11.5 FEET FRIDAY EVENING AROUND 10
PM. THE MENDENHALL RIVER READING AT 9 AM WAS 9.2 FEET. IT IS
FORECAST TO REACH FLOOD STAGE OF 11.5 FEET AROUND 6 AM FRIDAY AND
PEAK AT 14.6 FEET FRIDAY EVENING AT 10 PM.

* CURRENT WATER LEVEL PREDICTIONS ARE SLIGHTLY ABOVE THE PEAK FLOOD
LEVELS OBSERVED DURING THE GLACIER OUTBURST FLOOD IN JULY 2011.
WATER LEVELS WILL LIKELY COVER YARDS ALONG VIEW DRIVE NEAR BACK LOOP
BRIDGE BY 6 AM FRIDAY AND FLOOD SOME HOMES ALONG VIEW DRIVE BY
FRIDAY AFTERNOON. MENDENHALL LAKE CAMPGROUND AND TRAILS AROUND THE
LAKE WILL LIKELY BE IMPACTED WITH SOME FLOODING FRIDAY THROUGH
SATURDAY. HIGH TIDE AT 130 PM FRIDAY MAY AFFECT THE RATE WATER CAN
DRAIN DOWN THE MENDENHALL RIVER. FLOOD WATERS FROM THIS EVENT ARE
FORECAST TO DROP QUICKLY STARTING EARLY SATURDAY MORNING AND BE
BELOW FLOOD STAGE BY SATURDAY EVENING.

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN THE USGS RIVER GAUGE ON MENDENHALL LAKE READS 9 FT WATER WILL
BEGIN TO COVER SKATERS CABIN ROAD AT SKATERS CABIN TO WEST GLACIER
TRAIL AND WEST GLACIER TRAILHEAD IN THE JUNEAU AREA.

IF YOU LIVE NEAR OR ALONG MENDENHALL LAKE AND MENDENHALL RIVER BE
PREPARED FOR FLOODING AND TAKE ACTION.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

DO NOT PARK NEAR OR CROWD ON BACK LOOP BRIDGE. WATER FLOWING UNDER
THE BRIDGE WILL BE EXCEPTIONALLY HIGH AND FAST FRIDAY AND FRIDAY
NIGHT.

&&

LAT...LON 5856 13470 5853 13421 5834 13443 5837 13462

$$

RWT/TA




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