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May
30
2013

PDC Global Flood Survey

Ice Jam In Alaska!

PDC Global Hazards Atlas displaying PDC Integrated Active Hazards and accumulated rainfall for the past 7 days.

PDC Global Hazards Atlas displaying PDC Integrated Active Hazards and accumulated rainfall for the past 7 days.

Over the past week flood events were observed in the Bahamas, Colombia, Czech Republic, France, Norway, Sweden, and United States (Alaska, Hawaii, Middle Mississippi Valley, North Dakota, and Texas).

This week we will take a closer look at flooding caused by ice jams. Flooding caused by ice jams is usually experienced in cold climates.  Lower water levels in rivers may result in the formation of large sheets of ice on river surfaces.  Rapidly increasing water levels and temperature can cause the ice sheets to break up into large slabs of ice. As the ice slabs are forced downstream by rapidly moving water, they may become jammed and form dams which result in massive flooding upstream. (OSHA)

Below, let’s take a closer look at a recent ice jam-caused flooding event in Alaska.

Flooding: Alaska, United States

PDC Global Hazards Atlas centered on Alaska displaying PDC Integrated Active Hazards.

PDC Global Hazards Atlas centered on Alaska displaying PDC Integrated Active Hazards.

A large ice jam in a bend on the Yukon River backed up water 40 to 50 miles upstream. Galena, located about 15 miles upstream from the ice jam, was largely covered by water and almost all residents were reported to have evacuated from the area.   The flood is being described by some residents as the worst flood ever. (RSOE EDIS)

The latest forecast for Galena, Alaska depicts warm temperatures for the rest of the week, with a chance of precipitation later on. (Weather Underground)

Looking Ahead

PDC is also currently monitoring flooding events in: Bahamas, Central America, Czech Republic, England, France, and United States (Alaska, Middle Mississippi Valley, and North Dakota).

Remember, disasters can happen at any time! To learn more about floods and other types of natural hazards, check out the PDC’s Natural Hazards webpage! PDC will continue to monitor areas of high precipitation and keep a close eye on flooding across the globe. Stay up to date! Be sure to download PDC’s free Disaster Alert mobile app available for your iOS or Android devices today! Also be sure to continue to monitor PDC on Twitter, Facebook, and by way of the Global Hazards Atlas.

Want to find the most up-to-date information on flooding and other hazards occurring in your neighborhood or around the world? Then be sure to download PDC’s free Disaster Alert mobile app available for your iOS or Android devices today! Also be sure to continue to monitor PDC on Twitter, Facebook, and by way of the Global Hazards At