Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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000
ATPQ40 PGUM 200240
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
1240 PM CHST FRI APR 20 2018

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

A NEAR-EQUATORIAL TROUGH RUNS EASTWARD FROM 3N130E PASSING FAR SOUTH
OF KOROR AND CHUUK INTO A BROAD CIRCULATION SOUTHEAST OF KOSRAE NEAR
4N164E. A SURFACE TROUGH CURVES NORTHEASTWARD FROM THE CIRCULATION
AT 4N164E TO 8N170E TO BEYOND 9N180. NUMEROUS SHOWERS AND ISOLATED
THUNDERSTORMS FROM EASTERN POHNPEI STATE OVER KOSRAE STATE AND THE
MARSHALL ISLANDS ARE SOUTH OF A LINE FROM 7N159E TO 10N171E...AND
FROM MAJURO TO THE DATE LINE WITHIN 150 MILES OF A LINE FROM 7N171E
TO 10N180.

A WEAK COLD FRONT NEAR IWO TO ISLAND STRETCHES SOUTHWESTWARD FROM
25N145E TO ABOUT 22N141E. PATCHY CLOUDS AND SHOWERS ARE SEEN ALONG
AND UP TO 200 MILES NORTHWEST OF THE FRONT.

A SURFACE TROUGH RUNS NORTHEASTWARD FROM 22N130E TO BEYOND 25N139E.
CLOUDINESS AND PATCHY SHOWERS ARE SEEN ALONG AND UP TO 200 MILES
NORTHWEST OF THE TROUGH.



$$

SIMPSON



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