Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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ATPQ40 PGUM 250232
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
1232 PM CHST SUN JUN 25 2017

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

A TROPICAL DISTURBANCE EAST OF GUAM IS NOW THE SUBJECT OF A
TROPICAL CYCLONE FORMATION ALERT BY THE JOINT TYPHOON WARNING
CENTER. THIS DISTURBANCE IS CENTERED NEAR 13N147E...OR ABOUT 125
MILES EAST OF GUAM. SCATTERED TO NUMEROUS SHOWERS AND ISOLATED
THUNDERSTORMS ARE OVER AND EAST OF THE MARIANAS BETWEEN 12N AND
19N FROM 145E TO 150E. FOR MORE INFORMATION ON THIS DISTURBANCE
SEE BULLETINS ISSUED BY THE JOINT TYPHOON WARNING CENTER UNDER WMO
HEADER WTPN21 PGTW.

AN UPPER-LEVEL LOW CENTERED NORTHWEST OF SAIPAN NEAR 19N143E IS
TRIGGERING ISOLATED THUNDERSTORMS WELL WEST OF THE MARIANAS WITHIN
150 MILES OF A LINE FROM 14N134E TO 21N143E.

LOW-LEVEL CONVERGENCE IS GENERATING SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS WEST OF YAP BETWEEN 8N AND 12N FROM 133E TO 137E...
AND SOUTH OF KOROR SOUTH OF A LINE FROM 4N130E TO 5N140E TO
2N144E.

A WEAK CIRCULATION IS CENTERED SOUTH OF POHNPEI NEAR 2N159E. A
SURFACE TROUGH CURVES NORTHEASTWARD FROM 1N154E...THROUGH THE
CIRCULATION AND ACROSS EASTERN MICRONESIA TO NEAR 8N174E.
SCATTERED TO NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS ARE
ACROSS A BROAD AREA FROM SOUTH OF CHUUK AND POHNPEI...ACROSS
KOSRAE...KWAJALEIN AND MAJURO WITHIN 275 MILES OF A LINE FROM
1N150E TO 9N180.

$$

AYDLETT



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