000 AXPZ20 KNHC 030332 TWDEP TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 0405 UTC FRI AUG 03 2007 TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM THE EQUATOR TO 32N...EAST OF 140W. BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0315 UTC. ...SPECIAL FEATURES... NONE. ...TROPICAL WAVE... TROPICAL WAVE IS S OF GUATEMALA ALONG 91W TO 5N91W MOVING W AT 20 KT. SCATTERED MODERATE CONVECTION IS INLAND OVER GUATEMALA AND S MEXICO FROM 14N TO 16N BETWEEN 91W AND 94W. TROPICAL WAVE IS ALONG 116W/117W FROM 21N TO 9N MOVING W 10 KT. MOST CONVECTION IS EMBEDDED ON THE ITCZ. SCATTERED MODERATE TO STRONG CONVECTION IS W OF THE WAVE AXIS FROM 14N TO 18N BETWEEN 116W AND 120W. SCATTERED MODERATE CONVECTION IS FROM 14N TO 16N BETWEEN 113W AND 116W. ...ITCZ... ITCZ AXIS IS CENTERED ALONG...8N80W 10N90W 8N100W 16N112W 13N120W 14N130W 10N140W. IN ADDITION TO THE CONVECTION MENTIONED IN THE TROPICAL WAVE SECTION...SCATTERED MODERATE CONVECTION IS FROM 6N TO 9N BETWEEN 87W AND 89W. CLUSTERS OF SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS FROM 9N TO 14N BETWEEN 95W AND 108W. SCATTERED MODERATE CONVECTION IS FROM 11N TO 14N BETWEEN 135W AND 137W. ...DISCUSSION... BROAD MID-UPPER LEVEL RIDGE CENTERED AT 25N136W COVERS THE NW SECTION OF BASIN AND MAINTAINS DRY AIR MASS N OF ITCZ TO 30N BETWEEN 130W AND 150W. FURTHER E...A WEAK UPPER LEVEL TROUGH IS EXTENDS FROM 34N126W TO 25N128W WITH DRY AIR MASS N OF 20N BETWEEN 120W AND 130W. UPPER LEVEL LOW OVER NW CARIBBEAN SEA AT 19N86W IS PRODUCING DIFFLUENT PATTERN ALONG SRN CENTRAL AMERICA WITH CONVECTION DEBRIS CARRIED INTO E PAC FEEDING ITCZ E OF 100W. ON THE SURFACE...THE REMNANTS OF ERICK ARE NEAR 13N133W WITH 1011 MB. A NEW SURFACE 1010 MB LOW IS LOCATED NEAR 8N98W. TWO TROPICAL WAVES ARE DISCUSSED ABOVE. FURTHER MORE...A SURFACE TROUGH IS OFF THE COAST OF CALIFORNIA ALONG 34N126W 28N129W WITH NO SIGNIFICANT CONVECTION. A 1030 MB HIGH N OF THE AREA AT 38N144W MAINTAINS MODERATE TRADES N OF 20N W OF 130W. $$ FORMOSA