The Washington Post

National Hurricane Center plans new storm surge warnings starting in 2015

This map shows the surge expected from *a hypothetical hurricane* that threatens Charleston, S.C.

SOUTH PADRE ISLAND, Texas —The National Hurricane Center plans to begin issuing separate watches and warnings for hurricane storm surge in addition to those for wind beginning in 2015, Rick Knabb, the Center’s director, told the National Tropical Weather Conference here last Friday.

“We will focus more on people understanding the hazards they face,” Knabb said.

The Hurricane Center has been using the Saffir-Simpson categories 1 through 5 scale, which is based on a storm’s fastest wind speed, to quickly summarize hurricane strength since 1963.

Many residents of hurricane-prone areas use a storm’s category to decide whether to evacuate. Unfortunately, this has led many to make evacuation decisions that left them struggling for life in debris-filled water with many dying after surge destroyed their homes, which they had thought would be safe shelters. In addition, a hurricane’s wind speed doesn’t always correlate well with its surge, which is the high water a storm pushes ashore as it moves over land.

A relatively weak, but large hurricane can push more surge inland than a stronger, but smaller hurricane.

Since a storm’s surge doesn’t always arrive at the same time as its strongest winds, the surge watches and warnings will say when surge is expected.

The Hurricane Center and others have been working for the last few years to find ways to better alert those threatened by storm surge from relatively “weak” hurricanes while at the same time avoid making forecasts and warnings confusingly complex.

The Hurricane Center had previously announced that during this year’s June 1-November 30 season it will produce maps showing potential surge depths above ground level.

In the past, surge figures were for height above a fixed level based on mean sea level. Since many people don’t know the elevations of their neighborhoods above sea level, such surge projections meant little to them.

Related: National Hurricane Center gives storm surge modeling a major boost

Show Comments
Most Read

At a Glance


-- /48°


31° /45°
Drop 30%


32° /37°
Drop 70%


29° /37°
Drop 30%


22° /31°


18° /33°
National Airport

Right Now

Washington, D.C., Snow Tracker

Current Snow Total
Record Most Snow
Record Least Snow
(1997-98, 1972-73)
Last Winter's Snow Total

D.C. Area Almanac

Avg. High
Avg. Low
Rec. High
Rec. Low

To keep reading, please enter your email address.

You’ll also receive from The Washington Post:
  • A free 6-week digital subscription
  • Our daily newsletter in your inbox

Please enter a valid email address

I have read and agree to the Terms of Service and Privacy Policy.

Please indicate agreement.

Thank you.

Check your inbox. We’ve sent an email explaining how to set up an account and activate your free digital subscription.