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NOAC Yokosuka, Japan PowerPoint PPT Presentation

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NOAC Yokosuka, Japan. LT William Girdler Operations Officer. TCCOR Authorities. Additional Areas NOAC will be asked. Hong Kong & Diego Garcia (CNFJ SOPA ADMIN) Iwo To (When Naval Personnel are there) NAF Atsugi, NAF Misawa, NAF Kadena, C7F (CDR Mike Roth) Sortie Conditions for C7F assets

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NOAC Yokosuka, Japan

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NOAC Yokosuka, Japan

LT William Girdler

Operations Officer

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  • TCCOR Authorities

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Additional Areas NOAC will be asked

  • Hong Kong & Diego Garcia (CNFJ SOPA ADMIN)

  • Iwo To (When Naval Personnel are there)

  • NAF Atsugi, NAF Misawa, NAF Kadena,

  • C7F (CDR Mike Roth)

    • Sortie Conditions for C7F assets


    • Anyplace a naval asset is threatened CNFJ wants NOAC to provide update!

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N3 – Girdler/Bishop (6 Total)

Theater ASW Support (CTF-54/74)

Resource Protection (CNFJ)


NOP Management

OPS Admin

Command Training (support)

N5 – Savage/Green (16 Total)

Plans (C7F)

Afloat Support (CDS-15)

Fleet Liaison

ATG Support

Command Training (lead)

Sasebo Tech(1)

NOAC Yokosuka


CDR E. J. Trehubenko


LCDR Sim James

N1 - LT Rogers




25 Total Personnel

- Kiyohara-san

- Mr. Gedult

Operational Reports


AGCS Jed Johansen

Operational Reports




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NOAC Yokosuka Tropical Cyclone Watch Officer(CDO)

  • “Watches” anytime a TC is forecast to come within 180NM of a CNFJ asset

  • Maintains a continuous TC plot, compares to other fixes

  • Analyzes all available local data

    • Satellite Imagery (Center fixes, Scatterometry,

      Rain rate, winds, structure)

    • Outside Agencies (JMA, KMA, Hong Kong

      Observatory, NWS/NOAA, ECMWF, UK)

    • Model Data (Synoptic scale and Mesoscale)

    • Nomograms / Wind Probability

    • Local knowledge

  • Prepare and deliver staff briefs

  • Issues local warnings

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TS 15W





TS 15W


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TS 15W


0300l Sun 21 Sep


0300l Sat 20 Sep


0300l Fri 19 Sep


1500l Sat 20 Sep


1500l Fri 19 Sep


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TY 15W


2100l Sat 20 Sep


0900l Sun 21 Sep


0900l Sat 20 Sep


2100l Fri 19 Sep


0900l Fri 19 Sep


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Facts of Life

  • NOAC has a small staff with many deployed

  • C7F sets sortie conditions

  • NOAC main focus is ASW

    • Resource protection is NOAC’s “side job”

  • Timing is very important for morning Typhoon Battle Rhythm in order to support CNFJ morning brief.

    • NOAC needs to assess

    • Conference call

    • Prep brief

  • People in Japan get very concerned when JTWC says one thing but when they go to JMA’s webpage, they get confused/tense when there is a difference and it leaves NOAC in the uncomfortable position of trying to explain the delta.

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Final Thoughts

  • C7F and CNFJ are generally “Happy”

  • We appreciate:

    • Early communications when major changes are expected.

    • Early Warnings- warn on priority systems first (ie. Storm tracking to make land fall on Japan before one that will make land fall on China)

    • Not dropping warnings when storm goes extratropical until after passes naval facilities

  • We need better understanding:

    • Wind Probabilities products, How to apply to TCCOR Recommendations

    • Wind Radii Depictions for systems undergoing extra tropical transition

    • Anticipated rain amounts (minor flooding in housing)

    • Potential for significant storm surge

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