000 AXPZ20 KNHC 090900 TWDEP TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 1005 UTC SUN MAR 09 2008 TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM THE EQUATOR TO 32N...EAST OF 140W. BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0845 UTC. ...ITCZ... ITCZ AXIS 5N77W 3N94W 8N113W 5N122W 6N140W. SCATTERED MODERATE FROM 2N TO 6N BETWEEN 110W AND 117W. SCATTERED MODERATE ISOLATED STRONG WITHIN 60-90 NM EITHER SIDE OF LINE 12.5N106W 8N112W. ...DISCUSSION... W OF 100W... A MID TO UPPER LEVEL TROUGH IS ENTERING THE FAR NW PORTION OF THE DISCUSSION AREA ALONG 139W/140W N OF 18N...MOVING ENE 10-15 KNOTS. A LARGE MIDDLE/UPPER LEVEL RIDGE WITH AXIS ALONG 133W N OF ABOUT 10N WITH ASSOCIATED ANTICYCLONIC FLOW DOMINATING THE REMAINDER OF THE AREA W OF 120W. DOWNSTREAM LARGE MID TO UPPER LEVEL TROUGH WITH AXIS ALONG 106W/107W N OF ABOUT 15N WITH CYCLONIC FLOW LOCATED BETWEEN 98W AND 120W. NORTHWESTERLY JET DIGGING ON THE BACKSIDE OF THE TROUGH IS INDICATED ALONG 32N118W TO NEAR 23N112W. SATELLITE DERIVED WINDS INDICATED CORE SPEEDS OF 55-70 KNOTS. EMBEDDED WITHIN THE TROUGH IS A MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION CENTERED NEAR 22N106W...TURNING MORE TO THE E AT 10 TO 15 KNOTS. AT THE SURFACE...1028 MB HIGH NEAR 32N131W AND ASSOCIATED RIDGE DOMINATES THE AREA N OF 12N W OF 110W. MODERATE TRADE WINDS ARE LOCATED W OF 125W. E OF 100W... WINDS ALOFT IN THE EASTERN PART OF THE DISCUSSION AREA ARE PRIMARILY SE TO S WITH WATER VAPOR IMAGERY INDICATING STRONG SUBSIDENCE. AT THE SURFACE...0100 UTC HIGH RESOLUTION QUIKSCAT PASS AND GRIDDED QUIKSCAT DATA INDICATED 40 KT GALE FORCE WINDS IN THE GULF OF TEHUANTEPEC. GALES SHOULD CONTINUE UNTIL SUNRISE THEN WINDS DROP OFF QUICKLY TO LESS THAN 20 KNOTS WITHIN 18 HOURS AS SE RETURN FLOW IS ESTABLISHED OVER THE GULF OF MEXICO. 20 TO 25 KT WINDS SHOULD BEGIN SHORTLY OVER THE GULF OF FONSECA AND PAPAGAYO AND CONTINUE THROUGH 36 TO 48 HOURS...THEN REMAIN AROUND 20 KNOTS BEYOND THAT TIME FRAME. $$ COBB