000 AXPZ20 KNHC 290918 TWDEP TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 1005 UTC SUN APR 29 2007 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. ...ITCZ... ITCZ AXIS IS CENTERED ALONG ...4N77W 7N110W 5N140W. SCATTERED MODERATE CONVECTION IS WITHIN 90 NM OF THE POINT 7.9N99.7W. SCATTERED MODERATE TO STRONG CONVECTION IS WITHIN 60 NM OF THE POINT 5.3N137W. ...DISCUSSION... CYCLONIC CIRCULATION CONTINUES OVER NORTHWEST MEXICO. ASSOCIATED WEATHER IS CONVECTION IN THE NORTHERN MOUNTAINS OF MEXICO TO NORTH OF THE BORDER IN WESTERN TEXAS AND SOUTHERN NEW MEXICO. BROAD TROUGH CONTINUES NORTH OF 20N WITH LITTLE ASSOCIATED WEATHER. OVERCAST STRATOCUMULUS IS IN THE AREA WEST OF BAJA CALIFORNIA NORTH OF 25N AND WEST OF 117W FROM 20N TO 25N. REMAINDER OF AREA NORTH OF THE ITCZ IS BROAD RIDGE. SOUTH OF THE ITCZ BROAD TROUGH IS WEST OF 105W WITH SOMEWHAT ENHANCED CONVECTION IN THE ITCZ W OF 115W. PLUME OF UPPER MOISTURE IS OVER THE AREA WITHIN THE AREA BOUNDED BY 22N140W 29N119W 24N112W TO THE ITCZ NEAR 128W. BROKEN TO SCATTERED UPPER CLOUDS ARE WITHIN THIS AREA WITH BROKEN TO OVERCAST STRATOCUMULUS IN THE LOWER LEVELS. EAST OF THIS MOISTURE PLUME THE REGION IS DRY AND CLOUD FREE IN THE MIDDLE AND UPPER LEVELS EXCEPT FOR A REGION OF MODERATE SCATTERED CONVECTION WITHIN 90 NM OF 7.9N99.7W MENTIONED ABOVE. THIS CONVECTION IS CAUSING UPPER LEVEL MOISTURE TO FLOW NORTHEAST OVER CENTRAL AMERICA SOUTH OF HONDURAS. AT THE SURFACE WEAK RIDGE IS NORTH OF THE ITCZ WEST OF 112W. BROAD TROUGH IS ANALYZED ELSEWHERE. GAP WINDS...ELY TRADES OVER THE W CARIBBEAN CONTINUE TO OCCASIONALLY CROSS THE CENTRAL AMERICA ISTHMUS IN THE GULF OF PAPAGAYO REGION WITH E WINDS TO 20 KT. THIS IS EXPECTED TO CONTINUE FOR AT LEAST A COUPLE MORE DAYS. $$ LL