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-------- Original Message --------378 NOUS41 KWBC 151459
PNSWSHTECHNICAL IMPLEMENTATION NOTICE 09-36 NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC 1056 AM EDT THU OCT 15 2009 TO: NATIONAL WEATHER SERVICE OFFICES FEDERAL AVIATION ADMINISTRATION USERS FAMILY OF SERVICES SUBSCRIBERS OTHER USERS OF NWS AVIATION FORECASTS FROM: CYNDIE ABELMAN CHIEF AVIATION SERVICES BRANCH
SUBJECT: U.S. SIGMET TESTING DURING NOVEMBER 2009DURING NOVEMBER 2009 NWS WILL TEST ITS SIGMET PRODUCTION AND DISTRIBUTION PROCESS. THE TESTS SERVE AS AN IMPORTANT EXERCISE FOR THE THREE U.S. METEOROLOGICAL WATCH OFFICES /MWO/ IN KANSAS CITY...ANCHORAGE AND HONOLULU. THE TEST WILL INCLUDE ALL THREE TYPES OF SIGMETS: VOLCANIC ASH /WV/ ...TROPICAL CYCLONE /WC/ ...AND WEATHER PHENOMENA /WS/. THE VALIDITY PERIOD WILL BE ONLY 10 MINUTES. THE THREE MWOS WILL COORDINATE WITH THE TWO VOLCANIC ASH ADVISORY CENTERS /VAAC/ IN ANCHORAGE AND WASHINGTON FOR THE VOLCANIC ASH SIGMETS. THE TWO TROPICAL CYCLONE ADVISORY CENTERS /TCAC/ IN MIAMI AND HONOLULU WILL COORDINATE FOR THE TROPICAL CYCLONE SIGMETS. THE TESTS ARE SCHEDULED FOR 0200 UTC ON THE FOLLOWING DATES: NOVEMBER 10 2009: SIGMET TEST FOR TROPICAL CYCLONE /WC SIGMET/ IS SCHEDULED TO OCCUR AT 0200 UTC... WHEN THE MIAMI AND HONOLULU TCACS ISSUE THE TRIGGERING TROPICAL CYCLONE TEST ADVISORIES. THESE ADVISORIES THEN DRIVE THE ISSUANCE OF THE TROPICAL TEST SIGMETS PRODUCED BY THE KANSAS CITY AND HONOLULU MWOS. LOOK FOR THE FOLLOWING TWO WMO IDS DURING THIS TEST: WCPN## KKCI WCPA## PHFO NOVEMBER 17 2009: SIGMET TEST FOR VOLCANIC ASH /WV SIGMET/ IS THE SCHEDULED FOR 0200 UTC WHEN THE WASHINGTON AND ANCHORAGE VAACS ISSUE THE TRIGGERING VOLCANIC ASH TEST ADVISORIES. THESE ADVISORIES THEN DRIVE THE ISSUANCE OF THE VOLCANIC ASH TEST SIGMETS PRODUCED BY THE KANSAS CITY ANCHORAGE AND HONOLULU MWOS. LOOK FOR THE FOLLOWING THREE WMO IDS DURING THIS TEST: WVAK## PAWU
WVPN## KKCIWVPA## PHFO NOVEMBER 24 2009: SIGMET TEST FOR WEATHER PHENOMENA /WS SIGMET/ IS SCHEDULED TO OCCUR AT 0200 UTC WHEN THREE UNITED STATES MWOS ISSUE THEIR TEST SIGMETS. LOOK FOR THE FOLLOWING THREE WMO IDS DURING THIS TEST: WSAK## PAWU WSPN## KKCI WSPA## PHFO IF ACTIVE SIGMETS ARE OCCURING AT THE PROPOSED DATE AND TEST TIME...THE TEST WILL STILL BE COMPLETED. IF YOU HAVE ANY QUESTIONS CONTACT: MICHAEL GRAF NATIONAL WEATHER SERVICE SSMC-2 STATION 13314 1325 EAST-WEST HIGHWAY SILVER SPRING MD 20910 301-713-1726 X 117 MICHAEL.GRAF@xxxxxxxx NATIONAL SERVICE CHANGE NOTICES ARE ONLINE AT /USE LOWERCASE/:
HTTP://WWW.WEATHER.GOV/OS/NOTIF.HTM $$ -
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