ATPQ40 PGUM 281430
SIMGUM

SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
1230 AM CHST TUE MAR 1 2022

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

FROM THE EQUATOR TO 3N A NEAR-EQUATORIAL TROUGH IS PRODUCING 
NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS WELL SOUTH OF YAP AND 
EAURIPIK...IN A LARGE REGION BOUNDED BY EQ130E TO 5N130E TO 5N154E TO
EQ158E BACK TO EQ130E.

IRREGULAR...CONVERGENT TRADE-WIND FLOW IS PRODUCING SCATTERED 
SHOWERS ACROSS KOSRAE AND POHNPEI STATES BETWEEN 3N AND 8N FROM 155E 
TO 164E.

NORTH OF THE CNMI A SHEARLINE EXTENDS FROM 14N130E TO 17N140E...
PRODUCING CLOUDINESS AND SHOWERS WELL WEST-NORTHWEST OF THE MARIANAS
WITHIN 75 MILES OF SAID BOUNDARY.

A PAIR OF WEAK COLD FRONTS EAST OF MINAMI-TORISHIMA AND NORTH OF WAKE
ISLAND EXTEND FROM 22N157E TO BEYOND 25N160E...AND FROM 24N164E TO
BEYOND 25N166E. THESE FEATURES ARE GENERATING CLOUDS AND SHOWERS
ALONG THEIR RESPECTIVE AXES. 

LOOKING TO THE EAST OF MAJURO...ANOTHER BATCH OF CONVERGENT TRADE-
WIND FLOW IS PRODUCING PATCHY SHOWERS WITHIN 150 MILES OF A LINE FROM
6N173E TO BEYOND THE DATELINE.

THIS IS THE FINAL ISSUANCE OF THE ATPQ40 PGUM (SIMGUM) FROM NATIONAL
WEATHER SERVICE GUAM. IT HAS BEEN REPLACED BY AXPQ20 PGUM 
(TWDPQ)...TROPICAL WEATHER DISCUSSION...WHICH WILL PROVIDE ENHANCED 
INFORMATION. A FINAL THANK YOU TO ALL OF OUR CUSTOMERS THAT HAVE USED
THE SIMGUM AND TO ALL OF THE FORECASTERS WHO HAVE LENT THEIR 
EXPERIENCE AND KNOWLEDGE TO THE PRODUCTION OF THE NWS GUAM SATELLITE 
INTERPRETATION MESSAGE.

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NWS GUAM