000 AXNT20 KNHC 070547 TWDAT TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 205 AM EDT THU AUG 7 2014 TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTIONS OF SOUTH AMERICA...AND ATLANTIC OCEAN TO THE AFRICAN COAST FROM THE EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND METEOROLOGICAL ANALYSIS. BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0515 UTC. ...TROPICAL WAVES... TROPICAL WAVE W OF CAPE VERDE ISLANDS EXTENDS FROM 19N29W TO 11N29W MOVING W AT 10-15 KT. METEOSAT SAL TRACKING IMAGERY SHOWS EXTENSIVE AREA OF DRY MID-LEVEL AIR AROUND THE WAVE BUT SOME DEEP LAYER MOISTURE IN ITS IMMEDIATE ENVIRONMENT. THE PRESENCE OF SAHARAN DUST IS INHIBITING DEEP CONVECTION. TROPICAL WAVE E OF THE LESSER ANTILLES EXTENDS FROM 18N54W TO 9N55W MOVING W AT 15 KT. SCATTERED SHOWERS ARE FROM 11N-15N BETWEEN 51W-60W. LARGE AMPLITUDE TROPICAL WAVE OVER S BAHAMAS AND CENTRAL CARIBBEAN EXTENDS FROM 23N73W TO 11N74W MOVING W AT 15 KT. SCATTERED MODERATE CONVECTION IS MOSTLY W OF THE WAVE AXIS FROM 17N-20N BETWEEN 73W-77W. TROPICAL WAVE MOVING THROUGH CENTRAL AMERICA EXTENDS FROM N HONDURAS AT 16N86W TO TO THE E PACIFIC AT 8N87W MOVING W AT 15- 20 KT. SCATTERED MODERATE ISOLATED CONVECTION IS OVER N HONDURAS FROM 15N-17N BETWEEN 84W-86W. ...ITCZ/MONSOON TROUGH... THE MONSOON TROUGH EXTENDS FROM THE COAST OF AFRICA NEAR 12N16W TO 8N33W. THE ITCZ EXTENDS FROM 8N33W TO 8N40W TO 11N55W TO THE COAST OF SOUTH AMERICA NEAR 10N61W. ISOLATED MODERATE CONVECTION IS FROM 8N-10N BETWEEN 19W-27W...AND FROM 5N-9N BETWEEN 33W-41W. ...DISCUSSION... THE GULF OF MEXICO... A 1017 MB HIGH IS CENTERED S OF MISSISSIPPI NEAR 28N88W WITH MOSTLY FAIR WEATHER. A SURFACE TROUGH EXTENDS FROM THE S GULF OF MEXICO NEAR 22N90W TO THE BAY OF CAMPECHE AT 18N93W. ISOLATED MODERATE CONVECTION IS OVER THE YUCATAN PENINSULA FROM 18N-22N BETWEEN 89W-92W. IN THE UPPER LEVELS... A SMALL UPPER LEVEL LOW IS CENTERED NEAR TAMPICO MEXICO NEAR 23N98W. SCATTERED SHOWERS ARE SE OF THE CENTER FROM 17N-22N BETWEEN 95W-98W. AN UPPER LEVEL HIGH IS CENTERED OVER THE YUCATAN PENINSULA NEAR 21N90W. EXPECT OVER THE NEXT 24 HOURS FOR MORE SHOWERS AND CONVECTION OVER THE SW GULF...AND AIRMASS CONVECTION OVER FLORIDA IN THE AFTERNOON AND EVENING HOURS. THE CARIBBEAN SEA... TWO TROPICAL WAVES ARE OVER THE CARIBBEAN SEA AND CENTRAL AMERICA WITH ANOTHER TROPICAL WAVE APPROACHING THE LESSER ANTILLES. SEE ABOVE. A 1010 MB LOW IS CENTERED OVER N COLOMBIA NEAR 9N74W. SCATTERED MODERATE TO ISOLATED STRONG IS OVER N COLOMBIA FROM 6N-11N BETWEEN 73W-78W. IN THE UPPER LEVELS...AN UPPER LEVEL LOW IS CENTERED OVER THE S BAHAMAS NEAR 22N72W. UPPER LEVEL DIFFLUENCE S OF THE CENTER IS ENHANCING CONVECTION N OF JAMAICA. EXPECT OVER THE NEXT 24 HOURS FOR THE TROPICAL WAVE OVER THE CENTRAL CARIBBEAN TO MOVE W WITH CONVECTION...ALSO EXPECT A TROPICAL WAVE TO ADVECT OVER THE LESSER ANTILLES WITH CONVECTION. ...HISPANIOLA... RESIDUAL SCATTERED SHOWERS ARE OVER HAITI DUE TO A TROPICAL WAVE. EXPECT MOSTLY FAIR WEATHER ON THU. THE ATLANTIC OCEAN... RESIDUAL SCATTERED SHOWERS ARE OFF THE COAST OF N FLORIDA FROM 28N-31N BETWEEN 79W-81W. A SURFACE TROUGH IS FURTHER E FROM 31N70W TO 28N74W. SCATTERED SHOWERS ARE WITHIN 60 NM OF THE TROUGH. ANOTHER SURFACE TROUGH IS OVER THE CENTRAL ATLANTIC FROM 29N54W TO 25N56W. ISOLATED MODERATE CONVECTION IS FROM 25N-29N BETWEEN 52W-56W. A LARGE 1028 MB HIGH IS OVER THE E ATLANTIC NEAR 33N33W PRODUCING FAIR WEATHER. IN THE UPPER LEVELS... BESIDES THE UPPER LEVEL LOW OVER THE S BAHAMAS...ANOTHER LARGE LOW IS CENTERED NEAR 27N53W ENHANCING CONVECTION. ANOTHER LARGE UPPER LEVEL LOW IS CENTERED NEAR THE CAPE VERDE ISLANDS AT 15N20W. EXPECT OVER THE NEXT 24 HOURS FOR THE SURFACE TROUGH OVER THE W ATLANTIC TO MOVE E WITH SHOWERS AND CONVECTION. ALSO EXPECT MORE SHOWERS AND CONVECTION OVER THE BAHAMAS. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORMOSA