Satellite Interpretation Message
Issued by NWS Tiyan, Guam

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ATPQ40 PGUM 210248
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
1248 PM CHST SAT OCT 21 2017

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

TROPICAL DEPRESSION 27W IS CENTERED 325 MILES EAST-SOUTHEAST OF
GUAM NEAR 12N149E DRIFTING WEST AT 3 MPH WITH MAXIMUM SUSTAINED
WINDS OF 35 MPH. SCATTERED SHOWERS AND A FEW THUNDERSTORMS ARE
OCCURRING WEST OF THE CENTER WITHIN 50 MILES OF A LINE FROM
13N147E TO 11N149E AND NORTHEAST OF CHUUK WITHIN 75 MILES OF A
LINE FROM 17N150E TO 8N155E. FOR MORE INFORMATION ON TROPICAL
DEPRESSION 27W...SEE BULLETINS ISSUED BY THE JOINT TYPHOON WARNING
CENTER UNDER WMO HEADER WTPN33 PGTW AND BY THE NATIONAL WEATHER
SERVICE UNDER WMO HEADER WTPQ33 PGUM.

SUPER TYPHOON LAN (25W) IS CENTERED 380 SOUTHEAST OF OKINAWA AT
22N131E MOVING NORTHEAST AT 9 MPH WITH MAXIMUM SUSTAINED WINDS OF
155 MPH. HEAVY RAIN IS WITHIN 100 MILES OF THE CENTER. NUMEROUS
SHOWERS AND THUNDERSTORMS NORTHWEST OF YAP AND KOROR ARE WITHIN 75
MILES OF A LINE FROM 11N130E TO 13N135E TO 18N141E. OTHERWISE...
BANDS OF HEAVY SHOWERS AND ISOLATED THUNDERSTORMS ARE NORTH OF A
LINE FROM 13N130E TO 20N141E TO BEYOND 25N. FOR MORE INFORMATION
ON TYPHOON LAN...SEE BULLETINS ISSUED BY THE JOINT TYPHOON WARNING
CENTER UNDER WMO HEADER WTPN32 PGTW AND BY THE NATIONAL WEATHER
SERVICE UNDER WMO HEADER WTPQ32 PGUM.

A TROPICAL DISTURBANCE NEAR ENEWETAK ATOLL IS PRODUCING SCATTERED
SHOWERS AND THUNDERSTORMS WITHIN 150 MILES OF 12N164E.

A SURFACE TROUGH RUNS ACROSS EASTERN MICRONESIA FROM 9N157E TO
10N180. CONVERGING SOUTHEAST TO SOUTH WINDS ARE CAUSING SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS OVER POHNPEI AND KOSRAE STATES
WITHIN 100 MILES OF A LINE FROM 3N154E TO 7N160E TO 7N166E.

A TROPICAL DISTURBANCE OVER THE MARSHALL ISLANDS IS TRIGGERING
SCATTERED SHOWERS AND A FEW THUNDERSTORMS EAST OF A LINE FROM
15N175E TO 8N167E TO 3N168E.

CONVERGING SOUTHEAST WINDS SOUTH OF KOROR ARE CAUSING SCATTERED
SHOWERS AND A FEW THUNDERSTORMS SOUTH OF 2N FROM 130E TO 136E.

$$

SIMPSON



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