000 AXNT20 KNHC 130605 TWDAT TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 205 AM EDT WED AUG 13 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... AN ATLANTIC OCEAN TROPICAL WAVE IS ALONG 22W/23W FROM 19N SOUTHWARD. IT IS MOVING WESTWARD 10 TO 15 KNOTS. CONVECTIVE PRECIPITATION...BROKEN TO OVERCAST MULTILAYERED CLOUDS AND CYCLONIC WIND FLOW COVER THE AREA THAT IS FROM 5N TO 17N BETWEEN 17W AND 27W. SCATTERED MODERATE TO ISOLATED STRONG FROM 9N TO 11N BETWEEN 21W AND 26W. ISOLATED TO WIDELY SCATTERED MODERATE ELSEWHERE FROM 5N TO 17N BETWEEN 12W AND 27W. AN ATLANTIC OCEAN TROPICAL WAVE IS ALONG 39W/40W FROM 20N SOUTHWARD. IT IS MOVING WESTWARD 20 KNOTS. A 1012 MB LOW PRESSURE CENTER IS NEAR 12N28W. CONVECTIVE PRECIPITATION... SCATTERED STRONG FROM 8N TO 11N BETWEEN 38W AND 42W. BROKEN TO OVERCAST MULTILAYERED CLOUDS AND ISOLATED MODERATE COVER THE AREA THAT IS ELSEWHERE FROM 6N TO 20N BETWEEN 33W AND 50W. A CARIBBEAN SEA TROPICAL WAVE EXTENDS FROM SOUTHEASTERN CUBA...CUTTING ACROSS JAMAICA...TO 10N79W IN THE SOUTHWESTERN CORNER OF THE CARIBBEAN SEA. THE WAVE HAS BEEN MOVING WESTWARD 15 TO 20 KNOTS DURING THE LAST 24 HOURS. A MIDDLE LEVEL TO UPPER LEVEL INVERTED TROUGH EXTENDS FROM THE WINDWARD PASSAGE... CURVING INTO THE SOUTHWESTERN CORNER OF THE CARIBBEAN SEA. CONVECTIVE PRECIPITATION...ISOLATED MODERATE IN WESTERN SECTIONS OF HAITI AND ITS COASTAL WATERS...BETWEEN 78W AND 84W...AND IN THE NORTHWESTERN CORNER OF THE AREA FROM 18N NORTHWARD FROM 83W WESTWARD TO THE YUCATAN PENINSULA. A TROPICAL WAVE IS MOVING THROUGH THE MEXICO...ALONG 98W...FROM 20N SOUTHWARD. CONVECTIVE PRECIPITATION...NUMEROUS STRONG ALONG IN THE COASTAL PLAINS AND COASTAL WATERS OF MEXICO ON THE EASTERN PACIFIC OCEAN SIDE OF MEXICO...BETWEEN 97W AND 104W. ...THE ITCZ/THE MONSOON TROUGH... THE MONSOON TROUGH PASSES THROUGH COASTAL SECTIONS OF GUINEA- BISSAU NEAR 12N16W...TO 11N19W...TO 14N32W...TO THE 1012 MB LOW PRESSURE CENTER THAT IS NEAR 12N38W...8N46W. THE ITCZ CONTINUES FROM 8N46W TO 7N53W...TO NORTHERN SECTIONS OF GUYANA NEAR 6N58W. CONVECTIVE PRECIPITATION...SCATTERED TO NUMEROUS STRONG FROM 8N TO 10N BETWEEN 58W AND 60W. THIS AREA OF PRECIPITATION HAS BEEN MOVING WESTWARD WITH TIME. ...DISCUSSION... THE GULF OF MEXICO... THE MIDDLE LEVEL TO UPPER LEVEL CYCLONIC CIRCULATION CENTER THAT WAS ALONG THE TEXAS COAST/IN THE TEXAS COASTAL PLAINS 16 TO 24 HOURS AGO REMAINS. IT IS COMPARATIVELY NARROWER NOW...AND MORE CONFINED TO THE AREA THAT RUNS FROM THE MIDDLE AND LOWER TEXAS GULF COASTS INTO MEXICO ALONG THE COAST NEAR 20N. SOME NEARBY CONVECTIVE PRECIPITATION IS INLAND IN MEXICO. A SECOND MIDDLE LEVEL TO UPPER LEVEL CYCLONIC CIRCULATION CENTER...THAT WAS IN THE YUCATAN PENINSULA 16 TO 24 HOURS AGO... NOW IS IN THE SOUTHWESTERN CORNER OF THE GULF OF MEXICO. IT IS SPREADING CYCLONIC WIND FLOW FROM GUATEMALA TO 26N BETWEEN THE NORTHWESTERN CORNER OF THE CARIBBEAN SEA AND 94W. CONVECTIVE PRECIPITATION...SCATTERED TO NUMEROUS STRONG IN THE CENTRAL AND SOUTHERN SECTIONS OF THE ISTHMUS OF TEHUANTEPEC OF SOUTHERN MEXICO. ISOLATED MODERATE IN THE SOUTHWESTERN CORNER OF THE GULF OF MEXICO...AND OFF THE NORTHERN COAST OF THE YUCATAN PENINSULA. UPPER LEVEL ANTICYCLONIC WIND FLOW COVERS THE AREA THAT IS FROM 90W EASTWARD...AWAY FROM THE CYCLONIC WIND FLOW THAT REACHES 26N. RAINSHOWERS ARE POSSIBLE FROM 90W EASTWARD. A SURFACE RIDGE PASSES FROM AN ATLANTIC OCEAN 1022 MB HIGH PRESSURE CENTER THAT IS NEAR 28N57W...TO 26N64W...ACROSS THE BAHAMAS AND INTO THE FLORIDA STRAITS...AND ACROSS THE GULF OF MEXICO TO THE NORTHEASTERN COASTAL SECTIONS OF MEXICO IN THE GULF OF MEXICO. BROAD SURFACE ANTICYCLONIC WIND FLOW COVERS THE GULF OF MEXICO. THE SURFACE PRESSURE GRADIENT IS COMPARATIVELY WEAK. FOR THE OFFSHORE OIL PLATFORM SITES THAT ARE TO THE NORTH OF 27N TO THE WEST OF 88W... LOW LEVEL CLOUD CEILINGS ARE BEING REPORTED AT THE FOLLOWING ICAO STATIONS...KGRY AND KVOA. ICAO STATION KDLP IS REPORTING A MIDDLE LEVEL CLOUD CEILING. FOR THE COASTAL PLAINS OF THE U.S.A. FROM THE DEEP SOUTH OF TEXAS TO FLORIDA... A LOW CLOUD CEILING IS REPORTED IN WESLACO TEXAS IN THE DEEP SOUTH OF TEXAS. A MIDDLE LEVEL CLOUD CEILING IS BEING REPORTED IN MCALLEN...AND IN PEARLAND NEAR HOUSTON. MULTILAYERED CLOUD CEILINGS ARE BEING OBSERVED ON THE SOUTHERN SIDE OF LAKE PONTCHARTRAIN IN LOUISIANA. A VISIBILITY OF 3 MILES OR LESS WITH FOG/HAZE IS BEING REPORTED AT THE DOWNTOWN MOBILE ALABAMA AIRPORT. RAIN IS BEING REPORTED AND/OR HAS BEEN REPORTED RECENTLY FROM PUNTA GORDA FLORIDA TO THE FORT MYERS METROPOLITAN AREA DURING THE LAST FEW OBSERVATIONS. THE CARIBBEAN SEA... A CARIBBEAN SEA TROPICAL WAVE EXTENDS FROM SOUTHEASTERN CUBA...CUTTING ACROSS JAMAICA...TO 10N79W IN THE SOUTHWESTERN CORNER OF THE CARIBBEAN SEA. THE WAVE HAS BEEN MOVING WESTWARD 15 TO 20 KNOTS DURING THE LAST 24 HOURS. A MIDDLE LEVEL TO UPPER LEVEL INVERTED TROUGH EXTENDS FROM THE WINDWARD PASSAGE... CURVING INTO THE SOUTHWESTERN CORNER OF THE CARIBBEAN SEA. CONVECTIVE PRECIPITATION...ISOLATED MODERATE IN WESTERN SECTIONS OF HAITI AND ITS COASTAL WATERS...BETWEEN 78W AND 84W...AND IN THE NORTHWESTERN CORNER OF THE AREA FROM 18N NORTHWARD FROM 83W WESTWARD TO THE YUCATAN PENINSULA. MIDDLE LEVEL TO UPPER LEVEL SOUTHEASTERLY WIND FLOW COVERS THE REST OF THE CARIBBEAN SEA...IN THE WESTERN SECTIONS AND IN THE NORTHWESTERN CORNER OF THE CARIBBEAN SEA...IN THE AREA THAT IS TO THE WEST AND NORTHWEST OF THE MIDDLE LEVEL TO UPPER LEVEL INVERTED TROUGH. MIDDLE LEVEL TO UPPER LEVEL EASTERLY AND SOUTHEASTERLY WIND FLOW COVERS THAT PART OF THE CARIBBEAN SEA THAT IS TO THE EAST OF THE INVERTED TROUGH. THE 24-HOUR RAINFALL TOTAL IN INCHES...WAS 0.06 FOR GUADELOUPE...FOR THE PERIOD ENDING AT 13/0000 UTC...ACCORDING TO THE PAN AMERICAN TEMPERATURE AND PRECIPITATION TABLES... MIATPTPAN/SXCA01 KNHC. THE MONSOON TROUGH IS ALONG 10N74W IN COLOMBIA...ACROSS PANAMA...TO EXTREME SOUTHERN COSTA RICA NEAR 8N83W...AND WESTWARD INTO THE EASTERN PACIFIC OCEAN. CONVECTIVE PRECIPITATION...SCATTERED TO NUMEROUS STRONG IN CLUSTERS FROM 7N TO 10N BETWEEN 72W IN EXTREME NORTHWESTERN VENEZUELA...ACROSS COLOMBIA...TO THE COLOMBIA BORDER WITH PANAMA. THE SCATTERED MODERATE TO ISOLATED STRONG CONVECTIVE PRECIPITATION THAT IS IN THE COASTAL WATERS OF NICARAGUA FROM 13N TO 16N BETWEEN 78W AND 83W IS PROBABLY MORE RELATED TO THE NEARBY MIDDLE LEVEL TO UPPER LEVEL INVERTED TROUGH. PLEASE READ THE HIGH SEAS FORECAST...MIAHSFAT2/FZNT02 KNHC...AND THE OFFSHORE FORECAST...MIAOFFNT3/FZNT23 KNHC...FOR MORE DETAILS ABOUT...NORTHEAST TO EAST WINDS 20 TO 25 KNOTS AND SEA HEIGHTS TO 8 FEET FROM 11N TO 14N BETWEEN 69W AND 74W. ...HISPANIOLA... A CARIBBEAN SEA TROPICAL WAVE EXTENDS FROM SOUTHEASTERN CUBA...CUTTING ACROSS JAMAICA...TO 10N79W IN THE SOUTHWESTERN CORNER OF THE CARIBBEAN SEA. THE WAVE HAS BEEN MOVING WESTWARD 15 TO 20 KNOTS DURING THE LAST 24 HOURS. A MIDDLE LEVEL TO UPPER LEVEL INVERTED TROUGH EXTENDS FROM THE WINDWARD PASSAGE... CURVING INTO THE SOUTHWESTERN CORNER OF THE CARIBBEAN SEA. CONVECTIVE PRECIPITATION...ISOLATED MODERATE IN WESTERN SECTIONS OF HAITI AND ITS COASTAL WATERS...BETWEEN 78W AND 84W...AND IN THE NORTHWESTERN CORNER OF THE AREA FROM 18N NORTHWARD FROM 83W WESTWARD TO THE YUCATAN PENINSULA. CLOUD OBSERVATIONS...FEW LOW LEVEL AND SCATTERED HIGH LEVEL CLOUDS COVER SANTO DOMINGO. FEW LOW LEVEL CLOUDS ARE IN LA ROMANA AND IN PUNTA CANA. FEW LOW LEVEL CLOUDS ARE BEING OBSERVED IN SANTIAGO AND IN PUERTO PLATA. THE ATLANTIC OCEAN... BROAD MIDDLE LEVEL TO UPPER LEVEL CYCLONIC WIND FLOW COVERS THE ATLANTIC OCEAN FROM 28N NORTHWARD BETWEEN 50W AND 80W. A FRONTAL BOUNDARY CONTINUES ALONG 30N/32N FROM 50W WESTWARD BEYOND COASTAL SOUTH CAROLINA. CONVECTIVE PRECIPITATION... BROKEN TO OVERCAST MULTILAYERED CLOUDS AND SCATTERED MODERATE TO ISOLATED STRONG TO THE NORTH OF 24N BETWEEN 42W AND 80W. THE 24- HOUR RAINFALL TOTAL IN INCHES...WAS 0.97 FOR BERMUDA...FOR THE PERIOD ENDING AT 13/0000 UTC...ACCORDING TO THE PAN AMERICAN TEMPERATURE AND PRECIPITATION TABLES...MIATPTPAN/SXCA01 KNHC. A MIDDLE LEVEL TO UPPER LEVEL CYCLONIC CIRCULATION CENTER IS NEAR 22N58W. CYCLONIC WIND FLOW COVERS THE AREA FROM 20N TO 26N BETWEEN 50W AND 55W. CONVECTIVE PRECIPITATION...BROKEN TO OVERCAST MULTILAYERED CLOUDS AND POSSIBLE PRECIPITATION ARE IN THE AREA OF CYCLONIC WIND FLOW. NO SIGNIFICANT DEEP CONVECTIVE PRECIPITATION IS APPARENT IN SATELLITE IMAGERY. A SURFACE RIDGE PASSES FROM AN ATLANTIC OCEAN 1022 MB HIGH PRESSURE CENTER THAT IS NEAR 28N57W...TO 26N64W...ACROSS THE BAHAMAS AND INTO THE FLORIDA STRAITS...AND ACROSS THE GULF OF MEXICO TO THE NORTHEASTERN COASTAL SECTIONS OF MEXICO IN THE GULF OF MEXICO. ANOTHER SURFACE RIDGE EXTENDS FROM A 1028 MB HIGH PRESSURE CENTER THAT IS NEAR 36N29W...THROUGH 32N37W... TO 27N45W. PLEASE READ THE HIGH SEAS FORECAST...MIAHSFAT2/FZNT02 KNHC...FOR MORE DETAILS ABOUT...SOUTHWEST WINDS 20 TO 25 KNOTS AND SEA HEIGHTS LOWER THAN 8 FEET TO THE NORTH OF 30N BETWEEN 75W AND 78W. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ MT