Homeland Security Watch

News and analysis of critical issues in homeland security

November 30, 2012

West Coast Bombarded

Filed under: Catastrophes,Preparedness and Response,Risk Assessment — by Philip J. Palin on November 30, 2012

The National Weather Service forecast for Friday to Sunday opens with:

THE ONSLAUGHT OF PACIFIC MOISTURE WILL CONTINUE TO BOMBARD MUCH OF THE WEST COAST

Who needs aliens — or even North Koreans — when you have computer-enhanced atmospheric energy waves!

The weather channel explains,

Meteorologists use the term “atmospheric river” to describe a long, narrow plume piping deep moisture from the tropics into the mid-latitudes. One type of atmospheric river you may have heard of is the “Pineapple Express”, a pronounced plume tapping moisture from the Hawaiian Islands to the U.S. West Coast. Amazingly, according to NOAA’s Earth System Research Laboratory (ESRL), a strong atmospheric river can transport as water vapor up to 15 times the average flow of liquid water at the mouth of the Mississippi River! Suffice to say, if an atmospheric river stalls over a particular area, significant flooding can be the result.

Right now the immediate forecast suggests local challenges but nothing catastrophic.  For those outside the Pacific northwest: mostly guilt-free storm porn.  But just as one man’s porn may be another’s sex education (I too was once a thirteen-year-old boy), what unfolds this weekend could — even should — influence our expectations.

In early 2011 the US Geological Survey, CALEMA, and others conducted a multi-hazard demonstration project they called ARkStorm:

The hypothetical storm depicted here would strike the U.S. West Coast and be similar to the intense California winter storms of 1861 and 1862 that left the central valley of California impassible… The Central Valley experiences hypothetical flooding 300 miles long and 20 or more miles wide. Serious flooding also occurs in Orange County, Los Angeles County, San Diego, the San Francisco Bay area, and other coastal communities. Windspeeds in some places reach 125 miles per hour, hurricane-force winds. Across wider areas of the state, winds reach 60 miles per hour. Hundreds of landslides damage roads, highways, and homes. Property damage exceeds $300 billion, most from flooding.

Demand surge (an increase in labor rates and other repair costs after major natural disasters) could increase property losses by 20 percent. Agricultural losses and other costs to repair lifelines, dewater (drain) flooded islands, and repair damage from landslides, brings the total direct property loss to nearly $400 billion, of which $20 to $30 billion would be recoverable through public and commercial insurance. Power, water, sewer, and other lifelines experience damage that takes weeks or months to restore. Flooding evacuation could involve 1.5 million residents in the inland region and delta counties. Business interruption costs reach $325 billion in addition to the $400 billion property repair costs…

As we saw with Sandy and Katrina and the Tohoku Quake and Mississippi flooding and profound drought in the Great Plains (and more) this is not a wild-eyed Mayan prediction of the future.   This is merely the projection onto the present of a previous and recurring natural event.

Share and Enjoy:
  • Digg
  • Reddit
  • Facebook
  • Yahoo! Buzz
  • Google Bookmarks
  • email
  • Print
  • LinkedIn

2 Comments »

Comment by William R. Cumming

November 30, 2012 @ 8:10 am

Well the President may go down in history as the one that failed to learn anything from Katrina. Note that N.J. led in its EM programs, functions, and activities by the STATE POLICE has already by-passed that minion to go with a razor sharp lawyer political operative to lead the Sandy charge.

ONE SPECIFIC indication of incompetence is that NO formal Presidential delegation of either STAFFORD ACT authority to the Secretary HUD for recovery, transfer to HUD on at least a detail basis of FEMA recovery staff [were there any?], or a directive to all 65 other recovery programs, functions, and activities outside DHS and HUD identified by GAO on June 6, 2012 has been accomplished.

The pressure for an immediate supplemental for Hurricane Sandy grows daily on the HILL even as the Republicans have decided that embarassing
Governor Cuomo and ensuring his absence from the 2016 Presidential race will be a good thing by starving NY STATE and its local governments of money.

Well as some have stated including GAO recovery should be looked at in decades not days.

Comment by William R. Cumming

November 30, 2012 @ 8:12 am

Speaking of flood-related mudslides [a California specialty but not isolated to that state] FEMA and its predecessors and successors have had authority to map that hazard since 1969 and have failed to do so.

RSS feed for comments on this post. TrackBack URI

Leave a comment

XHTML: You can use these tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>