426  
ATPQ40 PGUM 200320  
SIMGUM  
 
SATELLITE INTERPRETATION MESSAGE  
NATIONAL WEATHER SERVICE TIYAN GU  
120 PM CHST WED MAR 20 2019  
 
WESTERN NORTH PACIFIC BETWEEN THE EQUATOR AND 25N FROM 130E TO 180.  
 
A BROAD QUASI-STATIONARY CIRCULATION IS CENTERED SOUTHWEST OF CHUUK  
NEAR 4N147E. A NEAR-EQUATORIAL TROUGH EXTENDS EASTWARD FROM 1N130E  
TO A BROAD QUASI-STATIONARY CIRCULATION CENTERED SOUTHWEST OF CHUUK  
NEAR 4N147E...THEN CONTINUES TO SOUTH OF POHNPEI AT 4N158E.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE OCCURRING IN THE  
LARGE AREA BOUNDED BY 8N137E TO 10N144E TO 10N160E TO 3N164E TO  
EQ164E TO EQ151E TO 6N1504 TO 6N138E BACK TO 8N137E. THIS INCLUDES  
CHUUK... POHNPEI AND KOSRAE.  
 
TRADE-WIND CONVERGENCE IS TRIGGERING SCATTERED TO NUMEROUS SHOWERS  
SOUTHEAST OF MAJURO WITHIN AN AREA EAST OF 171E BETWEEN 3N AND 7N.  
 
A STATIONARY FRONT EXTENDS SOUTHWESTWARD FROM 25N180 TO NORTHEAST OF  
WAKE ISLAND AT 22N170E THEN TURNS WESTWARD TO 22N160E THEN CONTINUES  
NORTHWESTWARD BEYOND 25N AT 152E. PATCHY CLOUDS AND SHOWERS ARE SEEN  
ALONG AND UP TO 130 MILES NORTH OF THE FRONT.  
 
A COLD FRONT CURVES SOUTHWESTWARD THROUGH 25N146E TO THE SOUTHWEST  
OF IWO TO AT 22N140E TO END AT 21N130E. PATCHY CLOUDS AND SHOWERS ARE  
PRESENT ALONG AND UP TO 60 MILES NORTHWEST OF THIS BOUNDARY.  
 

 
 
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