Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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000
ATPQ40 PGUM 241403
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
1203 AM CHST SUN JUN 25 2017

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

AN UPPER-LEVEL LOW IS OVER THE FAR NORTHERN MARIANAS AT 19N146E
AND A SURFACE TROUGH EAST OF GUAM AND SAIPAN CURVES FROM 11N145E
THROUGH A WEAK CIRCULATION AT 12N147E TO 16N148E. THE COMBINATION
OF THESE FEATURES IS CAUSING SHOWERS AND ISOLATED THUNDERSTORMS
IN PATCHY AREAS BETWEEN 21N AND 12N FROM 142E TO 151E.

A SURFACE TROUGH NORTHEAST OF CHUUK RUNS FROM 10N156E TO 17N152E.
SCATTERED SHOWERS WITH A FEW THUNDERSTORMS ARE WITHIN 100 MILES
OF THE TROUGH.

A WEAK SURFACE TROUGH OVER FAR WESTERN MICRONESIA STRETCHES FROM
6N130E TO 11N140E. SCATTERED SHOWERS AND A FEW THUNDERSTORMS NEAR
YAP ARE WITHIN 70 MILES OF A LINE FROM 12N132E TO 10N138E AND
SOUTHWEST OF KOROR IN PATCHY AREAS WEST OF A LINE FROM 7N133E TO
EQ133E AND ALONG THE EQUATOR SOUTH OF 2N FROM 137E TO 146E.

REMNANTS OF THE INTER-TROPICAL CONVERGENCE ZONE AND TRADE-WIND
CONVERGENCE ARE CAUSING SCATTERED SHOWERS AND A FEW THUNDERSTORMS
FROM SOUTH OF POHNPEI AND KOSRAE ACROSS THE MARSHALL ISLANDS
WITHIN 100 MILES OF A LINE FROM 4N157E TO 3N168E TO 10N178E.

$$

SIMPSON



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