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000
NOUS41 KWBC 171730
PNSWSH

Service Change Notice 20-87
National Weather Service Headquarters Silver Spring, MD
130 PM EDT Thu Sep 17 2020

TO:  Subscribers:
    -NOAA Weather Wire Service
    -Emergency Managers Weather Information Network
    -NOAAPort
    Other NWS Partners and Employees

FROM:  Captain James Crocker
      Acting Director, Surface and Upper Air Division
      Office of Observations

SUBJECT:  Transition of Manual Radiosonde Observations to
Automated Radiosonde Observations at Quillayute, WA,
on or about October 27, 2020

Effective on or about October 27, 2020 radiosonde observations
(RAOB) from Quillayute, WA, WMO# 72797, Station ID KUIL, will be
transitioned from manually launched 1680 MHz Vaisala RS92
radiosondes from the Radiosonde Replacement System (RRS) to the
Vaisala 403 MHz RS41-SGPA radiosonde using the Vaisala Autosonde
as the launch vehicle. The Autosonde will have a new release
point. This Service Change Notice (SCN) will be updated to
report the Datum of the relocated release point.

During the transition period of up to 30 days, dual radiosonde
flights may be performed until the Vaisala Autosonde System is
declared operational for the regularly scheduled observations of
00Z and 12Z.

For additional information on the message requirements, see WMO
306 Manual on Codes (International Codes):

-Volume I.1 Part A - Alphanumeric Codes
-Volume I.2 Part B - Binary Codes
-Volume II Regional Codes and National Coding Practices(WMO
Region IV)

If you have questions or feedback, please contact:

Hiram Escabi, Jr., NCE, CET
Upper Air Program Manager
NWS Program Management Branch
Silver Spring, Maryland
301-427-9195
hiram.escabi@noaa.gov

NWS Service Change Notices are online at:
https://www.weather.gov/notification/