Public Information Statement
Issued by NWS National HQ

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NOUS41 KWBC 271132
PNSWSH

Service Change Notice 17-36
National Weather Service Headquarters Silver Spring MD
732 AM EDT Mon Mar 27 2017

To:  Subscribers:
  -NOAA Weather Wire Service
  -Emergency Managers Weather Information Network
  -NOAAPORT
  Other NWS partners and NWS employees

FROM:  William Bauman
  Chief, Aviation and Space Weather Services Branch

SUBJECT:  The validity period for four Terminal Aerodrome
  Forecast (TAF) locations are extending from 24 hours
  to 30 hours effective June 13 and June 29, 2017

Effective June 13, 2017, 1800 GMT, the validity period for TAFs
will extend from 24 hours to 30 hours for Sun Valley, ID (KSUN),
and Bozeman MT (KBZN). Effective June 29, 2017, at 1800 GMT,
TAFs will extend from 24 hours to 30 hours for Las Vegas, NV
(KLAS), and Phoenix, AZ, (KPHX).

The extension in the TAF validity period has been coordinated
with the Federal Aviation Administration and responsible NWS
offices.

If you have comments or questions, please contact:

Scott Birch
Regional Aviation Meteorologist
NWS Western Region Headquarters
Salt Lake City UT
Phone: 801-524-4000 X264
Email: scott.birch@noaa.gov

National Service Change Notice are online:

 http://www.weather.gov/os/notif.htm



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