Juneau Flood Warning Issued as Glacier Outburst Causes Mendenhall Lake to Rise

Flood Warning and Glacial Outburst

• ⚠️ A flood warning has been issued for Juneau following a confirmed glacial outburst at Suicide Basin.
• 💡 This event was triggered by significant rainfall over the past several days, causing Mendenhall Lake to rise substantially.

Lake Level Projections and Flood Stages

• 📈 Mendenhall Lake was recorded at 9.5 ft and is expected to continue rising, potentially reaching a new record crest around 16.6 ft by Wednesday afternoon.
• 📊 The projected crest is estimated to be between 16.3 ft and 16.8 ft, indicating a significant rise beyond minor flood stage into moderate flood stage.

Evacuation and Public Safety Measures

• 🚨 Officials have recommended evacuations for residents within the 17-foot lake level inundation zone.
• 🗺️ Evacuation route signage is being deployed in affected neighborhoods to guide citizens.
• 📢 An "All Clear" message will be issued via the wireless emergency alert system once the water recedes and it is safe to return.