Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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ATPQ40 PGUM 171454
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
1254 AM CHST MON DEC 18 2017

WESTERN NORTH PACIFIC BETWEEN THE EQUATOR AND 25N FROM 130E TO 180.

A MONSOON TROUGH EXTENDS EASTWARD FROM 9N130E TO NEAR YAP AT
9N138E...THEN TURNS EAST-SOUTHEAST...PASSING THROUGH CIRCULATIONS
NEAR 7N142E AND 5N150E...BEFORE ENDING SOUTH OF KOSRAE NEAR EQ163E.
EXTENSIVE CLOUDINESS IS SEEN ACROSS MUCH OF WESTERN MICRONESIA...BUT
SHOWERS AND THUNDERSTORMS ARE MOSTLY FOUND WELL SOUTHEAST OF YAP
SOUTH OF A LINE FROM 4N140E TO 2N146E...AND NEAR YAP AND CHUUK WITHIN
150 MILES OF A LINE FROM 17N131E TO 9N142E TO 6N151E.

A COLD FRONT EXTENDS SOUTHWESTWARD THROUGH 25N150E TO 21N143E...THEN
CONTINUES AS A SHEAR LINE TO BEYOND 17N130E. CLOUDINESS AND PATCHY
SHOWERS ARE SEEN ALONG AND NORTHWEST OF THE SHEAR LINE TO BEYOND 25N.

TRADE WIND SHOWERS AND A FEW THUNDERSTORMS ARE FOUND NEAR POHNPEI
BETWEEN 7N AND 10N FROM 156E TO 162E...AND SOUTH OF MAJURO BETWEEN 1N
AND 6N FROM 166E TO 176E.

$$

AYDLETT



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