Extratropical storm event selection

Table G1

Tropical Events Impacting Mud Dump Site

HURDAT Storm No.

Given Name

Date (month/day/year)

296

Not Named

9/22/1929

327

Not Named

8/17/1933

332

Not Named

9/8/1933

353

Not Named

8/29/1935

370

Not Named

9/8/1936

386

Not Named

9/10/1938

436

Not Named

9/9/1944

535

Carol

8/25/1954

541

Hazel

10/5/1954

545

Connie

8/3/1955

597

Donna

8/29/1960

657

Doria

9/8/1967

702

Doria

8/20/1971

712

Agnes

6/14/1972

748

Belle

8/6/1976

835

Gloria

9/16/1985

Extratropical storm event selection

Extratropical events occur at a much greater frequency than tropical events.

As a result, a shorter historical time period can be used to represent the range of

events that can be expected to impact a particular area. For the extratropical

event analysis, approximately 15 to 20 years of winter activity were determined

to contain an adequate representation of extratropical events1 for any area along

the east coast of the United States. The 16 winter seasons (September through

March) for the period of 1977-78, 1978-79, ... , 1992-93 were selected as the

time period for which the DRP extratropical storm database was generated. This

time period was selected because it corresponds to dates when the Navy wind-

field database containing the extratropical winds was available in an ADCIRC-

compatible format. The DRP database was then used as the basis for the extra-

tropical frequency analysis described in this appendix.

The DRP extratropical storm database was also constructed by using the

ADCIRC numerical hydrodynamic model to simulate all 16 winter seasons over

the entire computational domain shown in Figure G1. The U.S. Navy's windfield

Personal Communication, 1994, L. E. Borgman, Professor, University of Wyoming, Laramie,

WY.

G10

Appendix G Procedures for Conducting Frequency-of-Erosion Studies