Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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ATPQ40 PGUM 211431
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
1231 AM CHST WED NOV 22 2017

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

A COLD FRONT CURVES SOUTHWESTWARD THROUGH 25N156E TO 20N149E...
THEN CONTINUES AS A SHEAR LINE TO 15N136E. CLOUDINESS...PATCHY
SHOWERS AND A FEW THUNDERSTORMS ARE ALONG AND UP TO 250 MILES
NORTHWEST OF THIS BOUNDARY.

A NEAR-EQUATORIAL TROUGH EXTENDS EASTWARD FROM 1N130E TO A WEAK
CIRCULATION CENTERED SOUTH OF CHUUK NEAR 3N152E...THEN CURVES
SOUTHEASTWARD TO END NEAR EQ160E. CONVERGENCE NORTH OF THE TROUGH
IS GENERATING SCATTERED SHOWERS NEAR AND SOUTHEAST OF YAP AND
KOROR WITHIN 140 MILES OF A LINE FROM 4N130E TO 8N140E AND WEST OF
CHUUK WITHIN 50 MILES OF A LINE FROM 7N145E TO 3N148E. SCATTERED
SHOWERS AND A FEW THUNDERSTORMS ARE SEEN NEAR THE TROUGH AND
CIRCULATION WELL SOUTH OF CHUUK SOUTH OF A LINE FROM 2N148E TO
4N150E TO 1N155E. CONVERGING WINDS NORTH OF THE CIRCULATION ARE
TRIGGERING SCATTERED SHOWERS AND THUNDERSTORMS NEAR CHUUK WITHIN
120 MILES OF A LINE FROM 8N150E TO 11N156E. SCATTERED SHOWERS ARE
SEEN NORTH OF POHNPEI TO EAST OF KOSRAE WITHIN 80 MILES OF A LINE
FROM 10N159E TO 4N167E.

AN UPPER-LEVEL LOW CENTERED NORTHEAST OF WAKE ISLAND NEAR 23N173E
IS INTERACTING WITH A SURFACE TROUGH TO PRODUCE SCATTERED SHOWERS
AND THUNDERSTORMS ARE PRESENT NEAR THESE FEATURES NORTH OF A LINE
FROM 21N172E TO 19N175E TO 20N178E.

$$

KLEESCHULTE



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