Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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000
ATPQ40 PGUM 180240
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
100 PM CHST SAT APR 18 2015

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

A SURFACE TROUGH NORTHWEST OF KOROR IS CAUSING SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS WITHIN 150 MILES OF 13N132E.

A WEAK CIRCULATION IS NEAR KOSRAE AT ABOUT 5N164E. WIDELY SCATTERED
SHOWERS AND A FEW THUNDERSTORMS ARE WITHIN 125 MILES OF A CURVED
LINE FROM EQ155E TO 5N160E TO 4N167E.

TRADE-WIND CONVERGENCE IS GENERATING SCATTERED SHOWERS AND A FEW
THUNDERSTORMS OVER THE NORTHERN MARSHALL ISLANDS AND THE MAJURO AREA
BETWEEN 5N AND 12N FROM 170E TO 180.

AN UPPER-LEVEL TROUGH IS HELPING TO TRIGGER SCATTERED SHOWERS
BETWEEN KWAJALEIN ATOLL AND WAKE ISLAND WITHIN 150 MILES OF A LINE
FROM 10N160E TO 20N175E.

$$

SIMPSON



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