000 AXPZ20 KNHC 280303 TWDEP TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 0405 UTC SAT OCT 28 2006 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 2045 UTC. ...SPECIAL FEATURES... TROPICAL DEPRESSION EIGHTEEN E NEAR 15.8N 106.1W 1010 MB AT 0300 UTC OCT 28 MOVING W OR 270 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. A GALE WARNING IS EXPECTED OVER THE GULF OF TEHUANTEPEC WITH N WINDS 30 TO 35 KT AND SEAS BUILDING TO 8 FT BY TOMORROW MORNING. ...ITCZ... ITCZ AXIS IS CENTERED ALONG 8N78W 8N100W 10N115W 7N125W 9N140W. SCATTERED MODERATE 90 NM WIDE 78W TO 80W. ...DISCUSSION... A STRONG SOUTHWESTERLY JET IS WITHIN 200 NM OF A LINE 20N140W 28N125W AND 30N110W. EXTENSIVE TROPICAL MOISTURE IS BEING ADVECTED INTO MEXICO AND THE SW US WITH THE JET. AN UPPER RIDGE EXTENDS FROM 20N105W TO 10N140W. THE RIDGE IS IN A LARGE AREA OF DRY AIR WHICH DOMINATES THE REST OF THE AREA. AT THE LOW LEVELS A RIDGE EXTENDS FROM 30N134W TO 20N120W. $$ FETORRES 000 AXPZ20 KNHC 280303 RRA TWDEP TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 0405 UTC SAT OCT 28 2006 TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND METEOROLOGICAL ANALYSIS. BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0230 UTC. ...SPECIAL FEATURES... TROPICAL DEPRESSION EIGHTEEN E NEAR 15.8N 106.1W 1010 MB AT 0300 UTC OCT 28 MOVING W OR 270 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. A GALE WARNING IS EXPECTED OVER THE GULF OF TEHUANTEPEC WITH N WINDS 30 TO 35 KT AND SEAS BUILDING TO 8 FT BY TOMORROW MORNING. ...ITCZ... ITCZ AXIS IS CENTERED ALONG 8N78W 8N100W 10N115W 7N125W 9N140W. SCATTERED MODERATE 90 NM WIDE 78W TO 80W. ...DISCUSSION... A STRONG SOUTHWESTERLY JET IS WITHIN 200 NM OF A LINE 20N140W 28N125W AND 30N110W. EXTENSIVE TROPICAL MOISTURE IS BEING ADVECTED INTO MEXICO AND THE SW US WITH THE JET. AN UPPER RIDGE EXTENDS FROM 20N105W TO 10N140W. THE RIDGE IS IN A LARGE AREA OF DRY AIR WHICH DOMINATES THE REST OF THE AREA. AT THE LOW LEVELS A RIDGE EXTENDS FROM 30N134W TO 20N120W. $$ FETORRES