Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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473
ATPQ40 PGUM 201500
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
100 AM CHST MON AUG 21 2017

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

THE SOUTHEASTERN END OF A MONSOON TROUGH REACHES SOUTHEASTWARD FROM
SOUTHEAST OF OKINAWA THROUGH 19N130E TO END NORTHEAST OF YAP AT
10N141E. SCATTERED SHOWERS AND THUNDERSTORMS ARE OCCURRING NORTHWEST
OF PALAU BETWEEN 12N AND 19N FROM 130E TO 138E. SCATTERED SHOWERS
AND A FEW THUNDERSTORMS ARE SEEN NEAR KOROR AND YAP WITHIN 160 MILES
OF A LINE FROM 9N136E TO 5N143E.

AN UPPER-LEVEL LOW CENTERED NEAR SAIPAN AT 15N146E IS TRIGGERING
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS OVER THE CNMI BUT EAST
OF GUAM WITHIN 105 MILES OF A LINE FROM 19N145E TO 12N148E.

A NEAR-EQUATORIAL TROUGH MEANDERS EASTWARD FROM SOUTHWEST OF CHUUK AT
2N144E ACROSS POHNPEI AND THE MARSHALL ISLANDS TO BEYOND 180 AT 6N.
SCATTERED SHOWERS ARE PRESENT JUST WEST OF CHUUK BETWEEN 4N AND 11N
FROM 145E TO 151E. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE
FOUND NEAR KOSRAE BUT SOUTH AND EAST OF MAJURO WITHIN 105 MILES OF A
LINE FROM 5N159E TO 4N173E TO 9N177E.

ANOTHER UPPER-LEVEL LOW CENTERED NORTHEAST OF WAKE ISLAND AT 26N172E
IS PRODUCING SCATTERED SHOWERS AND THUNDERSTORMS NORTH OF A LINE FROM
23N170E TO 22N173E.

$$

CHAN



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