000
AGXX40 KNHC 222347 AAA
MIMATS

MARINE WEATHER DISCUSSION...UPDATED
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
745 PM EDT THU JUL 22 2010

UPDATED DEPRESSION THREE TO TROPICAL STORM BONNIE AND THE 
WARNINGS SECTION FOR BREAKPOINTS

MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA 
AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W.

GULF OF MEXICO...
A 1008 MB LOW NEAR 20N96W IS DRIFTING W. THE LOW COULD POSSIBLY 
BECOME A TROPICAL CYCLONE WITHIN THE NEXT DAY OR TWO BEFORE 
MOVING INLAND. SCATTERED TO NUMEROUS TSTMS WITHIN 240 NM NE OF 
CENTER. MODERATE TO FRESH E TO SE BREEZE ACROSS STRAITS OF 
FLORIDA AND EASTERN GULF S OF 26N E OF 87W. WINDS ACROSS STRAITS 
OF FLORIDA WILL INCREASE FRI AS TROPICAL STORM BONNIE APPROACHES 
FROM THE BAHAMAS. WINDS THEN VEER SE FRI NIGHT AND SAT...AND 
DIMINISH TO A MODERATE BREEZE SUN AND MON. 

SW N ATLC...
NEWLY FORMED TROPICAL STORM BONNIE NEAR 22.9N 75.4W 1005 MB AT
2215 UTC IS MOVING NW AT 12 KT. MAXIMUM WINDS 35 KT WITH GUSTS 
TO 45 KT PER LATEST RECON AIRCRAFT OBSERVATION. LATEST NHC 
ADVISORY FROM 2100 UTC FORECASTS BONNIE TO MOVE TO 23.8N 77.5W 
LATE TONIGHT...THEN STRENGTHEN SLIGHTLY AS IT NEARS 24.5N 80.5W 
BY FRI AFTERNOON. BONNIE IS FORECAST TO MOVE INTO THE SE GULF OF 
MEXICO FRI EVENING. ELSEWHERE A RIDGE WILL REMAIN ALONG 31N 
THROUGH TUE.

N OF 28N TIGHT PRES GRADIENT BETWEEN TROPICAL SYSTEM AND HIGH 
PRES RIDGE ALONG 31N KEEP STRONG E-SE FLOW ACROSS REMAINDER SW N 
ATLC BASIN.  WINDS DECREASE LATE FRI AND SAT AS SYSTEM MOVES W 
INTO GULF OF MEXICO.  MODERATE TO FRESH SE FLOW LINGER OVER 
BASIN REMAINDER OF FORECAST PERIOD.   

CARIBBEAN AND TROPICAL N ATLC...
A TROPICAL WAVE EXTENDING FROM 22N48W TO 5N46W IS MOVING W AT
16 KT. IT IS FORECAST TO ENTER THE TROPICAL ATLC ZONE SAT AND 
CROSS E CARIBBEAN SUN AND MON. WINDS ARE EXPECTED TO INCREASE
TO 20 KT ACROSS EASTERN CARIBBEAN AND TROPICAL ATLC ZONES AS 
PRES GRADIENT TIGHTENS BETWEEN ATLC RIDGE AND TROPICAL WAVE 
APPROACHING WINDWARD ISLANDS. OTHERWISE LITTLE CHANGE IS 
EXPECTED.

WARNINGS...
ATLC...
.AMZ080...TROPICAL STORM WARNING S OF 26N W OF 76W...

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.GMZ086...TROPICAL STORM WARNING S OF 27N E OF 85W...
.GMZ080 AND GMZ084...TROPICAL STORM CONDITIONS EXPECTED N OF 25N
BETWEEN 90W AND 93W FRI NIGHT THROUGH SUN...

FOR ADDITIONAL INFORMATION PLEASE VISIT 
HTTP://WWW.HURRICANES.GOV/MARINE

$$
FORECASTER WALLY BARNES/AGUIRRE