Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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000
ATPQ40 PGUM 180242
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
1242 PM CHST FRI AUG 18 2017

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

A SURFACE TROUGH EXTENDS NORTHEASTWARD FROM 15N136E THROUGH A
DISTURBANCE NEAR 18N140E TO BEYOND 25N154E. SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS ARE FOUND NORTHWEST OF THE MARIANAS WITHIN
150 MILES OF A LINE FROM 15N138E TO 25N142E.

LOW-LEVEL CONVERGENCE IS GENERATING SCATTERED SHOWERS...PATCHY
RAIN AND ISOLATED THUNDERSTORMS ACROSS THE MARIANAS BETWEEN 12N
AND 18N FROM 141E TO 148E.

CONVERGING SOUTH AND SOUTHWEST WINDS ARE PRODUCING SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS ACROSS YAP AND PALAU WITHIN 150
MILES OF A LINE FROM 5N133E TO 15N138E...AND WITHIN AN AREA
BOUNDED BY A LINE FROM 12N140E TO 9N145E TO 5N136E BACK TO
12N140E.

A SURFACE TROUGH CURVES NORTHEASTWARD FROM 4N143E TO 13N153E.
SCATTERED SHOWERS AND A FEW THUNDERSTORMS ARE PRESENT BETWEEN GUAM
AND CHUUK WITHIN 200 MILES OF A LINE FROM 5N145E TO 12N153E.

AN UPPER-LEVEL LOW IS CENTERED WELL NORTHEAST OF THE MARIANAS
NEAR 17N157E. NUMEROUS SHOWERS AND THUNDERSTORMS ARE JUST SOUTH OF
THE CENTER AND NORTH OF POHNPEI WITHIN 225 MILES OF A LINE FROM
17N153E TO 11N161E.

TRADE-WIND CONVERGENCE IS CAUSING SCATTERED SHOWERS AND A FEW
THUNDERSTORMS NEAR POHNPEI...KOSRAE AND MAJURO WITHIN 140 MILES
OF A LINE FROM 5N150E TO 6N172E...AND EAST OF A LINE FROM 13N172E
TO 5N172E.

$$

AYDLETT



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