Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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ATPQ40 PGUM 171431
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
100 AM CHST THU JAN 18 2018

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

A COLD FRONT EXTENDS FROM 25N175E TO JUST EAST OF WAKE ISLAND AT
19N169...THEN CONTINUES AS A SHEAR LINE TO ABOUT 15N160E. AN ACTIVE
LINE OF THUNDERSTORMS IS FOUND ALONG THE FRONT AS FAR SOUTHWEST AS
22N172E. OTHERWISE...CLOUDINESS AND PATCHY RAIN ARE PRESENT WITHIN
100 MILES OF A LINE FROM 20N170E TO 15N160E...PASSING JUST SOUTH OF
WAKE ISLAND.

A WEAK CIRCULATION IS CENTERED SOUTH OF KOROR NEAR 4N135E. SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS ARE OCCURRING SOUTH OF THE CENTER
BETWEEN THE EQUATOR AND 3N FROM 133E TO 136E. NORTH OF THE CENTER...
ISOLATED THUNDERSTORMS ARE FOUND WEST OF YAP BETWEEN 9N AND 11N FROM
134E TO 136E.

A WEAK TRADE-WIND DISTURBANCE IS PRODUCING SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS SOUTHWEST OF CHUUK...BETWEEN THE EQUATOR AND
5N FROM 143E TO 153E.

WEAK TRADE-WIND CONVERGENCE IS GENERATING PATCHY SHOWERS BETWEEN 8N
AND 10N FROM 161E TO 169E...INCLUDING KWAJALEIN.

$$

MGM



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