NOUS41 KWBC 061213 CCA
Service Change Notice 12-41 Corrected
National Weather Service Headquarters Washington DC
703 AM EST Nov 6 2012
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
Other NWS partners and employees
From: Cynthia Abelman
Chief, Aviation Services Branch
Subject: Corrected: U.S. SIGMET Testing November 7-21
Corrected to add Kansas City to the November 7 testing.
All three United States Meteorological Watch Offices (MWOs)
(Kansas City, Anchorage and Honolulu) will be performing
annual SIGMET testing November 7-21. The tests serve as an
important exercise and will include Volcanic Ash (VA),
Tropical Cyclone (WC) and Weather phenomena (WS) SIGMETs.
The validity period for each test is 10 minutes.
On November 7 at 0200 GMT the Honolulu and Kansas City MWOs
will coordinate with the Tropical Cyclone Advisory Center
(TCAC) in Honolulu and issue a test Tropical Cyclone SIGMET.
Look for the following SIGMET WMO ID during this test:
On November 14 at 0200 GMT all three U.S. MWOs will
coordinate with the two Volcanic Ash Advisory Centers
(VAACs) (Anchorage and Washington) for the Volcanic Ash
SIGMETs test. Look for the following SIGMET WMO IDs during
On November 21 at 0200 GMT all three U.S. MWOs will issue
test SIGMETs for Weather phenomena (WS). Look for the
following three SIGMET WMO IDs during this test:
If active SIGMETs are occurring at the proposed date and
time, the test will still continue.
If you have any questions about this change, please contact:
National Weather Service
SSMC-2 Station 13314
1325 East-West Highway
Silver Spring Md. 20910
301-713-1726 X 117
National Technical Implementation Notices are online at: