000
AXPZ20 KNHC 011005
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC FRI NOV 01 2013

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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...SPECIAL FEATURES...                                          

TROPICAL DEPRESSION EIGHTEEN-E DEVELOPED AT 01/0900 NEAR 
16.4N108.0W. THE TROPICAL DEPRESSION IS MOVING TOWARD THE NORTH 
6 KNOTS. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1007 MB. THE 
MAXIMUM SUSTAINED WIND SPEED IS 30 KNOTS WITH GUSTS TO 40 KNOTS. 
PUBLIC ADVISORIES ON TROPICAL DEPRESSION 18-E ARE ISSUED UNDER 
WMO HEADER WTPZ33 KNHC AND UNDER AWIPS HEADER MIATCPEP3. 
FORECAST/ADVISORIES ON TROPICAL DEPRESSION 18-E ARE ISSUED UNDER 
WMO HEADER WTPZ23 KNHC AND UNDER AWIPS HEADER MIATCMEP3. 
CONVECTIVE PRECIPITATION...NUMEROUS STRONG FROM 14N TO 17N 
BETWEEN 107W AND 111W. SCATTERED MODERATE TO ISOLATED STRONG 
FROM 19N TO 21N BETWEEN 106W AND 108W. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...              

THE MONSOON TROUGH IS ALONG 08N78W 16N100W...TO A 1010 MB LOW 
PRESSURE CENTER THAT IS NEAR 15N120W...TO 09N128W. THE ITCZ 
CONTINUES FROM 09N128W TO A 1010 MB LOW PRESSURE CENTER THAT IS 
NEAR 08N138W...BEYOND 07N140W. CONVECTIVE PRECIPITATION... 
SCATTERED STRONG WITHIN 60 TO 90 NM ON EITHER SIDE OF ITCZ W OF 
136W.  

A 1010 MB LOW PRESSURE CENTER IS NEAR 07N91W. CONVECTIVE 
PRECIPITATION...SCATTERED STRONG FROM 05N TO 10N BETWEEN 88W AND 
96W.  

...DISCUSSION...                                            

A MIDDLE LEVEL TO UPPER LEVEL CYCLONIC CIRCULATION CENTER IS 
NEAR 27N126W. CYCLONIC WIND FLOW COVERS THE EASTERN PACIFIC 
OCEAN TO THE NORTH OF 18N TO THE EAST OF 140W. COMPARATIVELY 
DRIER AIR IN SUBSIDENCE...AS DEPICTED IN WATER VAPOR IMAGERY... 
COVERS THE SAME AREA. THE SURFACE PRESSURE GRADIENT IS 
COMPARATIVELY WEAK. LIGHT TO MODERATE NORTHERLY WINDS ARE 
BLOWING ACROSS THE AREA. SEA HEIGHTS RANGE FROM 4 FEET TO 7 FEET 
TO THE NORTH OF 10N TO THE WEST OF 110W. LITTLE CHANGE IN MARINE 
CONDITIONS IS EXPECTED DURING THE NEXT 48 HOURS.

SOUTHERLY FLOW S OF THE MONSOON TROUGH HAS INCREASED TO FRESH  
TO STRONG LEVELS S OF PANAMA AND W OF COLOMBIA WITH SEAS 
BUILDING TO UP TO 8 FT. BY FRI MORNING INTO EARLY AFTERNOON... 
THESE CONDITIONS ARE EXPECTED TO DIMINISH AND SUBSIDE. 

$$
MT