Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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ATPQ40 PGUM 171353
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
100 AM CHST TUE JAN 17 2017

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

A FRONTAL BOUNDARY RUNS SOUTHWESTWARD FROM 24N180 PASSING NEAR WAKE
ISLAND AT 20N166E TO NEAR GUAM AT 13N145E TO BEYOND 8N130E. NUMEROUS
SHOWERS AND ISOLATED THUNDERSTORMS ARE WITHIN 75 MILES OF A LINE
FROM JUST WEST OF GUAM AT 14N143E TO 9N130E. OTHERWISE...CLOUDS AND
PATCHY RAIN ARE ALONG AND UP TO 350 MILES NORTHWEST OF THE BOUNDARY.

A SURFACE TROUGH SOUTHEAST OF KOROR CURVES NORTHWESTWARD FROM 1N141E
TO 6N136E. SCATTERED SHOWERS AND A FEW THUNDERSTORMS ARE BETWEEN 6N
AND THE EQUATOR FROM 135E TO 140E AND WITHIN 100 MILES OF 5N145E.

TRADE-WIND CONVERGENCE IS TRIGGERING SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS OVER POHNPEI AND KOSRAE STATES AND THE MARSHALL
ISLANDS SOUTH OF A LINE FROM 5N155E TO 7N168E TO 5N180.

$$

SIMPSON



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