000 AXPZ20 KNHC 291536 TWDEP TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 1605 UTC THU MAY 29 2014 TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND METEOROLOGICAL ANALYSIS. BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 1500 UTC. ...SPECIAL FEATURES... AMANDA CONTINUES TO WEAKEN AND WAS DOWNGRADED TO A TROPICAL DEPRESSION AT 29/1500 UTC. AT THIS TIME...IT IS CENTERED NEAR 16.3N 110.0W MOVING E OR 85 DEGREES AT 6 KT. MAXIMUM SUSTAINED WIND SPEED IS 30 KT WITH GUSTS TO 40 KT. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1006 MB. DEEP CONVECTION IS WELL REMOVED FROM THE CENTER AND CONFINED TO A BAND THAT IS ABOUT 150 NM TO THE NE OF THE CENTER. AMANDA WILL MOVE SLOWLY EASTWARD OR EAST- NORTHEASTWARD DURING THE NEXT DAY OR SO. ADDITIONAL WEAKENING IS FORECAST...AND THIS TROPICAL CYCLONE IS EXPECTED TO BECOME A REMNANT LOW IN ABOUT A DAY. PLEASE SEE LATEST NHC FORECAST/ ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP1/ WTPZ21 KNHC FOR MORE DETAILS. ...TROPICAL WAVES... A TROPICAL WAVE EXTENDS FROM THE SW CARIBBEAN SEA ACROSS EASTERN PANAMA INTO THE NE PACIFIC. ITS AXIS RUNS FROM 11N76W TO 02N82W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS NOTED N OF 02N E OF AXIS TO THE COAST OF COLOMBIA. THE WAVE COINCIDES WITH A BULGE OF MOISTURE AS SEEN ON THE TPW ANIMATION. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH EXTENDS FROM 07N84W TO A 1009 MB LOW PRES NEAR 12N97W TO 11N106W...THEN RESUMES W OF AMANDA FROM 11N113W TO 08N120W TO A SECOND LOW PRES NEAR 09N130W TO 04N134W. THE ITCZ AXIS CONTINUES FROM 04N134W TO BEYOND 04N140W. SCATTERED MODERATE FROM 10N TO 13N BETWEEN 88W AND 90W AND FROM 04N TO 08N BETWEEN 90W AND 95W. CLUSTER OF MODERATE TO STRONG CONVECTION WITHIN 30NM OF 9.5W96.5W. SCATTERED MODERATE ISOLATED STRONG FROM 05N TO 11N BETWEEN 104W AND 110W. ISOLATED MODERATE FROM 05N TO 10N BETWEEN 126W AND 133W. ...DISCUSSION... A NEARLY STATIONARY AND STRONG 1038 MB SURFACE HIGH PRES IS LOCATED WELL NW OF THE FORECAST AREA NEAR 42N142W. THIS HIGH EXTENDS A RIDGE SE ACROSS THE WATERS THROUGH 30N130W TO 22N118W. A TIGHT PRES GRADIENT EXISTS ON THE SE-S SIDE OF THE RIDGE WITH STRONG WINDS STILL BLOWING IN PORTIONS OF THE CALIFORNIA COASTAL WATERS. FRESH TO STRONG NORTHERLY WINDS ARE ALSO NOTED ACROSS THE NW CORNER OF THE FORECAST AREA PER THE MOST RECENT ASCAT PASS AND A FEW SHIP OBSERVATIONS. ASSOCIATED SEAS ARE 8-10 FT BASED ON AN ALTIMETER PASS...N OF 29N BETWEEN 121W AND 125W. THE HIGH IS FORECAST TO MOVE TO A POSITION NEAR 41N140W BY 24 HOURS...AND NEAR 40N141W BY 48 HOURS WHILE WEAKENING. AS THE HIGH AND ASSOCIATED PRESSURE GRADIENT WEAKEN THE WINDS WILL DIMINISH TO MODERATE TO FRESH OVER THE NORTH WATERS...AND SEAS WILL SUBSIDE TO LESS THAN 8 FT BY FRI NIGHT. 1009 MB LOW PRES IS EMBEDDED IN THE MONSOON TROUGH NEAR 09N130W. ISOLATED MODERATE CONVECTION IS OBSERVED AROUND THE LOW CENTER FORECAST TO MOVE WESTWARD OVER THE NEXT 24 HOURS. ASSOCIATED WINDS ARE CURRENTLY 10-20 KT WITH SEAS OF 6-7 FT AND LITTLE CHANGE IN THESE CONDITIONS ARE FORECAST THROUGH THE NEXT 48 HOURS. FARTHER E...ANOTHER 1009 MB LOW PRES HAS DEVELOPED ALONG THE MONSOON TROUGH NEAR 12N97W. CLUSTERS OF MODERATE TO STRONG CONVECTION ARE SEEN WELL W OF THE CENTER FROM 09N TO 14N BETWEEN 100W AND 104W. ENVIRONMENTAL CONDITIONS APPEAR CONDUCIVE FOR SOME DEVELOPMENT OF THIS SYSTEM EARLY NEXT WEEK AS IT MOVES LITTLE. CROSS EQUATORIAL SW SWELL ARE REACHING THE FAR SOUTH-CENTRAL WATERS SW OF THE GALAPAGOS ISLANDS...AND WILL GRADUALLY SPREAD NORTHWARD COVERING THE WATERS S OF 02S E OF 100W AND S OF 00N BETWEEN 100W AND 113W BETWEEN 82W AND 102W BY SAT MORNING. $$ GR