Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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000
ATPQ40 PGUM 240249
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
1249 PM CHST TUE OCT 24 2017

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

TROPICAL STORM 27W IS CENTERED 155 MILES SOUTHWEST OF GUAM NEAR
12N143E AND MOVING NORTHWEST AT 17 MPH WITH MAXIMUM SUSTAINED
WINDS OF 45 MPH. HEAVY RAIN AND ISOLATED THUNDERSTORMS ARE SEEN
BETWEEN 12N AND 9N FROM 141E TO 144E. FOR MORE INFORMATION ON
27W...SEE BULLETINS ISSUED BY THE JOINT TYPHOON WARNING CENTER
UNDER WMO HEADER WTPN33 PGTW AND BY THE NATIONAL WEATHER SERVICE
UNDER WMO HEADER WTPQ33 PGUM.

A MONSOON TROUGH EXTENDS EASTWARD FROM 9N130E THROUGH TROPICAL
STORM 27W AT 12N143E THEN TURNS NORTHEASTWARD AS A SURFACE TROUGH
TO END WEST OF WAKE ISLAND NEAR 19N154E. SCATTERED TO NUMEROUS
SHOWERS AND ISOLATED THUNDERSTORMS ARE SEEN OVER THE REPUBLIC OF
PALAU AND YAP STATE IN AN AREA BOUNDED BY A LINE FROM 9N130E TO
13N139E TO 4N144E TO 4N130E BACK TO 9N130E.

CONVERGING SOUTH TO SOUTHEAST WINDS ARE CAUSING NUMEROUS SHOWERS
AND A FEW THUNDERSTORMS OVER WESTERN CHUUK STATE WITHIN 75 MILES
OF A LINE FROM 11N139E TO 6N148E. ALSO...SCATTERED SHOWERS WITH A
FEW THUNDERSTORMS ARE SEEN OVER EASTERN CHUUK STATE WITHIN 100
MILES OF A LINE FROM 10N154E TO 4N153E.

CONVERGING SOUTHEAST SURFACE WINDS AND UPPER-LEVEL DIVERGENCE ARE
TRIGGERING SCATTERED SHOWERS AND A FEW THUNDERSTORMS WELL NORTH
OF POHNPEI WITHIN 150 MILES OF A LINE FROM 19N154E TO 15N157E TO
12N157E.

$$

SIMPSON


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