NOUS41 KWBC 031636
Service Change Notice 10-37
Weather Service Headquarters
1236 PM EDT Thu Nov 3 2011
-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: US SIGMET Testing from November 8-22, 2011
The NWS will be performing annual end-to-end testing of Significant Meteorological Information (SIGMET) production from November 8-22 at 0200 coordinated universal time (UTC).
On November 8, the SIGMET test for Tropical Cyclone (WC) is scheduled to occur at 0200 UTC when the Miami and Honolulu Tropical Cyclone Advisory Centers (TCAC) issue their Tropical Cyclone test advisories that drive the SIGMETs produced at the Kansas City and Honolulu Meteorological Watch Offices (MWO). Look for the following two SIGMET World Meteorological Organization (WMO) IDs during this test:
On November 15, the SIGMET test for Volcanic Ash (WV) is scheduled to occur at 0200 UTC when the Washington and Anchorage VAACs issue their Volcanic Ash Advisories (VAAs), which drive the SIGMETs produced at the Kansas City, Honolulu and Anchorage MWOs. Look for the following three SIGMET WMO IDs during this test:
On November 22, the SIGMET test for Weather phenomena (WS) is scheduled to occur at 0200 UTC when the three U.S. MWOs issue their test SIGMETs. Look for the following three SIGMET WMO IDs during this test:
The tests serve as an important exercise for the three U.S. MWOs in Kansas City, Anchorage and Honolulu. The tests will include all three types of SIGMETs: Volcanic Ash (VA), Tropical Cyclone (WC) and Weather phenomena (WS). The validity period will be 10 minutes.
The three MWOs will
coordinate with the two Volcanic Ash Advisory Centers (VAACs) in
Even if active SIGMETs are occurring at the proposed date and time, the test will occur.
If you have questions about this notice, please contact:
National Weather Service
SSMC-2 Station 13314
1325 East-West Highway
Silver Spring Md.
301-713-1726 X 117
National Technical Implementation Notices are online at: