Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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000
ATPQ40 PGUM 251529
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
129 AM CHST MON JUN 26 2017

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

A TROPICAL DISTURBANCE CENTERED NEAR ROTA REMAINS THE SUBJECT OF A
TROPICAL CYCLONE FORMATION ALERT ISSUED BY THE JOINT TYPHOON WARNING
CENTER. SCATTERED HEAVY SHOWERS AND ISOLATED THUNDERSTORMS ARE SEEN
OVER GUAM AND THE CNMI WITHIN 105 MILES OF A LINE FROM 12N144E TO
18N147E. FOR MORE INFORMATION ON THIS DISTURBANCE SEE BULLETINS
ISSUED BY THE JOINT TYPHOON WARNING CENTER UNDER WMO HEADER WTPN21
PGTW...AND SPECIAL WEATHER STATEMENT ISSUED BY THE NATIONAL WEATHER
SERVICE UNDER WMO HEADER WWMY80 PGUM.

AN UPPER-LEVEL TROUGH RUNS NORTHWARD FROM NEAR YAP AT 10N136E THROUGH
A LOW CENTERED WEST OF THE MARIANA ISLANDS AT 19N140E TO END NEAR IWO
TO ISLAND AT 25N141E. ISOLATED THUNDERSTORMS ARE PRESENT NEAR THESE
FEATURES WITHIN 90 MILES OF A LINE FROM 12N134E TO 18N134E TO 23N138E.

A SURFACE TROUGH REACHES SOUTHEASTWARD FROM NORTH OF CHUUK AT 10N151E
TO A WEAK CIRCULATION CENTERED NEAR 2N155E...THEN TURNS NORTHEASTWARD
TO END JUST WEST OF KWAJALEIN AT 9N155E. ISOLATED THUNDERSTORMS ARE
OCCURRING FROM WELL SOUTH OF YAP TO NEAR CHUUK WITHIN 140 MILES OF
A LINE FROM 2N137E TO 2N148E TO 12N152E...AND ALSO NEAR POHNPEI
WITHIN 100 MILES OF A LINE FROM EQ157E TO 5N154E TO 8N160E.
CONVERGING TRADE WINDS FARTHER EAST ARE CAUSING SPORADIC CONVECTION
OVER KOSRAE AND THE MARSHALL ISLANDS BETWEEN 4N AND 10N FROM 162E TO
177E.

TWO UPPER-LEVEL LOWS CENTERED NEAR WAKE ISLAND AT 19N163E AND 20N172E
ARE TRIGGERING ISOLATED THUNDERSTORMS BETWEEN 17N AND 21N FROM 163E
TO 171E.

$$

CHAN


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