659
AXPQ20 PGUM 310148
TWDPQ
TROPICAL WEATHER DISCUSSION
NATIONAL WEATHER SERVICE TIYAN GU
1148 AM CHST MON MAR 31 2025
TROPICAL WEATHER DISCUSSION FOR THE WESTERN NORTH PACIFIC BETWEEN
THE EQUATOR AND 25N FROM 130E TO 180. THE FOLLOWING INFORMATION IS
BASED ON RECENT SATELLITE IMAGERY/DATA, WEATHER OBSERVATIONS, RADAR,
AND METEOROLOGICAL ANALYSIS.
..SPECIAL FEATURES
NONE.
..OTHER WEATHER SYSTEMS
TRADE-WIND TROUGHS...
A TRADE-WIND TROUGH RUNS FROM EQ140E TO 25N145E. SCATTERED SHOWERS AND
A FEW THUNDERSTORMS ARE FOUND NORTH OF YAP ISLAND AND WEST OF THE
MARIANAS. THIS TROUGH IS EXPECTED TO CONTINUE MOVING WESTWARD WITH
LITTLE CHANGE OF INTENSITY.
A SERIES OF TRADE-WIND TROUGHS EXTEND NORTH TO SOUTH ALONG 159E, 164E,
170E AND 177E. EXTENSIVE LOW-LEVEL CLOUDINESS COVERS EASTERN POHNPEI
STATE, KOSRAE AND MOST OF THE REPUBLIC OF THE MARSHALL ISLANDS. ALSO,
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE NOTED IN THE SOUTHERN
AND CENTRAL MARSHALLS NEAR AND SOUTHEAST OF MAJURO. THESE TROUGHS ARE
EXPECTED TO MOVE WESTWARD WITH LITTLE CHANGE OF INTENSITY.
TRADE-WIND SURGE...
A SHEAR LINE HAS FADED INTO A TRADE-WIND SURGE BETWEEN 7N AND 18N FROM
146E TO 155E. MODERATE TO FRESH TRADE WINDS ARE CREATING SMALL CRAFT
ADVISORY CONDITIONS WITHIN THE MARIANAS. CONVERGENCE SOUTH OF THE
SURGE IS COMBINING WITH A SMALL TRADE-WIND TROUGH ALONG 130E TO CREATE
SCATTERED SHOWERS AND A FEW THUNDERSTORMS SOUTH OF KOROR AND YAP TO
ALMOST SOUTH OF CHUUK. THIS FEATURE IS FORECAST TO SHOW LITTLE MOTION
WITH A DIMINISHING INTENSITY, AND IS EXPECTED TO LAST ONLY ANOTHER
DAY OR TWO.
OTHER SYSTEMS...
A SHEAR LINE ENTERS MICRONESIA NEAR 25N147E THEN CUTS TO 18N130E.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE OBSERVED ALONG AND
NORTH OF THIS BOUNDARY TO 25N WITH EXTENSIVE CLOUDINESS CONTINUING
WELL BEYOND. THE SHEAR LINE IS FORECAST TO MOVE A LITTLE SOUTHEASTWARD
WITH LITTLE CHANGE IN STRENGTH THROUGH TUESDAY.
STANKO
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