Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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000
ATPQ40 PGUM 120233
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
1233 PM CHST TUE DEC 12 2017

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

A NEAR-EQUATORIAL TROUGH EXTENDS EAST-SOUTHEASTWARD THROUGH 10N130E
AND A WEAK CIRCULATION CENTERED NEAR 9N131E...THEN PASSES BETWEEN
KOROR AND YAP TO END NEAR EQ158E. SCATTERED SHOWERS AND A FEW
THUNDERSTORMS ARE FOUND WEST OF KOROR WEST OF A LINE FROM 12N131E TO
3N134E...AND SOUTH OF CHUUK BETWEEN THE EQUATOR AND 7N FROM 141E TO
157E.

A SURFACE TROUGH EXTENDS NORTHEASTWARD FROM THE CIRCULATION AT 9N131E
TO 25N149E. SCATTERED SHOWERS AND THUNDERSTORMS ARE NORTH OF YAP
AND WEST OF THE MARIANAS WITHIN 150 MILES OF A LINE FROM 12N137E
TO 25N149E.

TRADE-WIND CONVERGENCE IS PRODUCING SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS OVER PORTIONS OF POHNPEI AND KOSRAE STATES WITHIN 120
MILES OF A LINE FROM 8N160E TO 1N166E...AND NEAR MAJURO BETWEEN 2N
AND 8N FROM 170E TO THE DATE LINE.

A SHEAR LINE EXTENDS SOUTHWESTWARD THROUGH 25N147E TO BEYOND 15N130E.
CLOUDINESS...PATCHY SHOWERS AND A FEW THUNDERSTORMS ARE OCCURRING
ALONG AND UP TO 350 MILES NORTHWEST OF THE SHEAR LINE.

ANOTHER SHEAR LINE EXTENDS WESTWARD THROUGH 22N180 TO 22N170E AND
BEYOND 25N167E. CLOUDINESS AND PATCHY SHOWERS ARE ALONG AND UP TO 100
MILES NORTH OF THE SHEAR LINE.

TRADE-WIND SHOWERS ARE FOUND SOUTH OF WAKE ISLAND AND OVER THE
NORTHERN MARSHALL ISLANDS BETWEEN 10N AND 17N FROM 160E TO 178E.

$$

AYDLETT


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