Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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000
ATPQ40 PGUM 161453
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
1253 AM CHST SUN DEC 17 2017

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

A MONSOON TROUGH EXTENDS SOUTHEASTWARD FROM TROPICAL STORM KAI-TAK
OVER THE CENTRAL PHILIPPINES ACROSS 12N130E...PASSING NEAR YAP AT
10N139E THEN THROUGH A TROPICAL DISTURBANCE CENTERED SOUTH OF GUAM
NEAR 5N145E TO END SOUTHWEST OF POHNPEI AT EQ155E. NUMEROUS HEAVY
SHOWERS AND ISOLATED THUNDERSTORMS ARE SEEN NEAR THE DISTURBANCE
BETWEEN 4N AND 11N FROM 139E TO 148E. SCATTERED SHOWERS AND A FEW
THUNDERSTORMS ARE FOUND SOUTHWEST OF CHUUK WITHIN 140 MILES OF A LINE
FROM 4N147E TO EQ150E. SCATTERED SHOWERS AND THUNDERSTORMS ARE
OCCURRING OVER PALAU WITHIN 160 MILES OF A LINE FROM 12N133E TO
7N134E TO 1N140E. FOR INFORMATION ON TROPICAL STORM KAI-TAK...SEE
BULLETINS ISSUED BY THE JOINT TYPHOON WARNING CENTER UNDER WMO HEADER
WTPN31 PGTW.

A SURFACE TROUGH RUNS NORTHEASTWARD FROM KAI-TAK TO END NEAR MINAMI
TORI SHIMA AT 25N155E. EXTENSIVE CLOUDINESS AND PATCHY RAIN ARE ALONG
AND UP TO 250 MILES NORTHWEST OF THE TROUGH AXIS.

CONVERGING TRADE WINDS ARE TRIGGERING PATCHY SHOWERS AND A FEW
THUNDERSTORMS NORTHWEST OF CHUUK WITHIN 75 MILES OF A LINE FROM
11N149E TO 8N151E...AND NEAR POHNPEI BUT SOUTH OF KOSRAE AND MAJURO
WITHIN 75 MILES OF A LINE FROM 8N157E TO 3N162E TO 4N175E TO 7N179E.

A COLD FRONT CURVES WEST-SOUTHWESTWARD FROM NORTHEAST OF WAKE ISLAND
THROUGH 25N173E TO NORTH OF WAKE AT 24N167E...THEN CONTINUES AS A
SHEAR LINE TO END NEAR MINAMI TORI SHIMA AT 24N154E. PATCHY SHOWERS
ARE PRESENT ALONG AND UP TO 230 MILES NORTH OF THIS BOUNDARY.

$$

CHAN


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