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010
NOUS1 KRWA 291627
WMSC NOUS1
CIRNOT NR 021/00 PART ONE OF TWO PARTS
ATTN WMSCR USERS. THE FOLLOWING WAS RECEIVED FROM THE NWS:
ON MONDAY APRIL 17 2000 AT 1200 COORDINATED UNIVERSAL TIME
/UTC/...THE AVIATION WEATHER CENTER /AWC/ WILL CHANGE THE HEADERS
FOR THE AVIATION WARNINGS CURRENTLY PREPARED FOR THE NEW YORK
FLIGHT INFORMATIONM REGION /FIR/...THE SAN JUAN FIR...THE MIAMI
FIR...THE HOUSTON FIR...THE OAKLAND FIR EAST OF 140 DEGREES
WEST...AND THE OAKLAND FIR NORTH OF 30 DEGREES NORTH AND WEST OF
140 DEGREES WEST. THESE PRODUCTS INCLUDE THE:
THE INTERNATIONAL IN-FLIGHT ADVISORIES /SIGMETS/ FOR
PORTIONS OF THE ATLANTIC AND PACIFIC OCEANS...GULF OF MEXICO
AND THE CARRIBEAN SEA.
THE ONLY CHANGES BEING IMPLEMENTED ARE IN THE WORLD
METEOROLOGICAL ORGANIZATION /WMO/ AND ASSOCIATED AFOS HEADERS.
NO CHANGES WILL BE MADE TO THE AREA COVERED BY ANY OF THE
FORECASTS OR WARNINGS...NOR TO THE ISSUANCE TIMES.
THESE CHANGES ARE BEING MADE IN ORDER FOR THE ENTIRE
INTERNATIONAL SIGMET AREA IN THE ATLANTIC OCEAN FOR WHICH AWC IS
NOW RESPONSIBLE AVAILABLE UNDER A SINGLE SET OF COMMUNICATION
HEADERS. SIMILAR CHANGES ARE BEING MADE IN THE PACIFIC
INTERNATIONAL SIGMETS ISSUED BY AWC.
THE WMO HEADERS OF OTHER AWC PRODUCTS NOT LISTED IN THIS MESSAGE
WILL BE CHANGED TO USE KKCI LATER THIS YEAR.
IN THE HEADERS LISTED BELOW...KMKC IS THE CURRENT FOUR-LETTER
IDENTIFIER FOR THE AWC. KKCI IS THE NEW FOUR-LETTER IDENTIFIER
FOR THE AWC.
THE SPECIFIC PRODUCTS THAT WILL HAVE A HEADER CHANGE ON APRIL 17
2000 ARE:
INTERNATIONAL IN-FLIGHT ADVISORIES /SIGMETS/ - ATLANTIC OCEAN...
CARRIBEAN SEA AND GULF OF MEXICO
CURRENT NEW WMO CURRENT NEW
WMO HEADER HEADER AFOS PIL AFOS PIL
WSNT01 KMKC NONE MKCSIGA0<A-M> NONE
NONE WSNT01 KKCI NONE MKCSIGA0A
WSNT02 KKCI WSNT02 KKCI MKCSIGA1A MKCSIGA0B
WSNT03 KKCI WSNT03 KKCI MKCSIGA1B MKCSIGA0C
WSNT04 KKCI WSNT04 KKCI MKCSIGA1C MKCSIGA0D
WSNT05 KKCI WSNT05 KKCI MKCSIGA1D MKCSIGA0E
WSNT06 KKCI WSNT06 KKCI MKCSIGA1E MKCSIGA0F
WSNT07 KKCI WSNT07 KKCI MKCSIGA1F MKCSIGA0G
WSNT08 KKCI WSNT08 KKCI MKCSIGA1G MKCSIGA0H
WSNT09 KKCI WSNT09 KKCI MKCSIGA1H MKCSIGA0I
WSNT10 KKCI WSNT10 KKCI MKCSIGA1I MKCSIGA0J
WSNT11 KKCI WSNT11 KKCI MKCSIGA1J MKCSIGA0K
WSNT12 KKCI WSNT12 KKCI MKCSIGA1K MKCSIGA0L
WSNT13 KKCI WSNT13 KKCI MKCSIGA1L MKCSIGA0M
WSNT14 KKCI NONE MKCSIGA1M NONE
END PART ONE OF TWO PARTS
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