381
AXPQ20 PGUM 200104
TWDPQ
TROPICAL WEATHER DISCUSSION
NATIONAL WEATHER SERVICE TIYAN GU
1104 AM CHST WED NOV 20 2024
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
A SHEAR LINE EXTENDS WESTWARD, NEAR 21N, FROM MINAMITORISHIMA
WESTWARD. WIDESPREAD CLOUDINESS WITH EMBEDDED SHOWERS TO THE NORTH
ARE PREVALENT WITH THIS FEATURE.
..OTHER WEATHER SYSTEMS
TRADE-WIND TROUGHS...
A SMALL AND WEAK SURFACE TROUGH IN THE TRADES IS PASSING OVER
NGULU THIS MORNING, BETWEEN KOROR AND YAP, WHILE EXTENDING SOUTH-
SOUTHWEST TO NORTH-NORTHEAST A COUPLE HUNDRED MILES IN EACH
DIRECTION. THIS FEATURE IS KICKING OFF A FEW SHOWERS AND
THUNDERSTORMS EAST OF YAP, AND SCATTERED SHOWERS WITH INCREASED
THUNDERSTORM COVERAGE FROM SOUTH OF KOROR, TO SOUTHEAST OF
NGULU/SOUTH OF YAP. THIS FEATURE WILL MOVE WESTWARD OVER THE NEXT
FEW DAYS, BRINGING INCREASED SHOWER AND THUNDERSTORM POTENTIAL TO
THE LOCATIONS MENTIONED ABOVE DURING THE NEXT 36 HOURS.
A MORE PRONOUNCED SURFACE TROUGH EXTENDS FROM NORTHWEST OF
KAPINGAMARANGI TO POHNPEI TO NEAR BIKINI ATOLL AND EAST OF TAONGI
IN THE RMI. MUCH GREATER COVERAGE OF SHOWERS AND THUNDERSTORMS
ARE FOUND NEAR AND EAST TO SOUTHEAST OF THIS FEATURE, WHICH WILL
CONTINUE WESTWARD OVER THE NEXT FEW DAYS WHILE SLOWLY WEAKENING.
..ITCZ
THE ITCZ THAT'S BEEN IN A WEAKENING STATE THE PAST FEW DAYS HAS
FINALLY DISSOLVED, WITH NO APPARENT SIGNATURE NOTICED IN VISIBLE
SATELLITE IMAGERY OR OBSERVATIONAL DATA. HOWEVER, THE MODELS SHOW
A RESURGENCE OF A DEVELOPING ITCZ REACHING MAJURO AND POSSIBLY
KOSRAE BY THE WEEKEND, WHILE PROGRESSING WESTWARD WHILE
MAINTAINING INTENSITY FOR THE FIRST HALF OF NEXT WEEK.
DOLL
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