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TROPICAL STORM MARCO FORECAST/ADVISORY NUMBER  11
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL142020
0300 UTC SUN AUG 23 2020
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
NONE.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
A STORM SURGE WATCH IS IN EFFECT FOR...
* SABINE PASS TO THE ALABAMA/FLORIDA BORDER
* LAKE PONTCHARTRAIN...LAKE MAUREPAS...LAKE BORGNE...AND MOBILE BAY
 
A HURRICANE WATCH IS IN EFFECT FOR...
* INTRACOASTAL CITY LOUISIANA TO THE MISSISSIPPI/ALABAMA BORDER
* LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND METROPOLITAN NEW ORLEANS
 
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* PROVINCE OF PINAR DEL RIO CUBA
 
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* MISSISSIPPI/ALABAMA BORDER TO THE ALABAMA/FLORIDA BORDER
 
A STORM SURGE WATCH MEANS THERE IS A POSSIBILITY OF LIFE-
THREATENING INUNDATION...FROM RISING WATER MOVING INLAND FROM THE
COASTLINE...IN THE INDICATED LOCATIONS DURING THE NEXT 48 HOURS.
FOR A DEPICTION OF AREAS AT RISK...PLEASE SEE THE NATIONAL WEATHER
SERVICE STORM SURGE WATCH/WARNING GRAPHIC...AVAILABLE AT
HURRICANES.GOV.
 
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA.  A WATCH IS TYPICALLY ISSUED 48 HOURS
BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE
WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR
DANGEROUS.
 
A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.
 
TROPICAL STORM CENTER LOCATED NEAR 22.8N  86.3W AT 23/0300Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE NORTH-NORTHWEST OR 335 DEGREES AT  11 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  994 MB
MAX SUSTAINED WINDS  55 KT WITH GUSTS TO  65 KT.
50 KT....... 20NE  20SE   0SW  10NW.
34 KT....... 50NE  60SE  10SW  30NW.
12 FT SEAS.. 60NE  30SE   0SW  30NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT.  RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.
 
REPEAT...CENTER LOCATED NEAR 22.8N  86.3W AT 23/0300Z
AT 23/0000Z CENTER WAS LOCATED NEAR 22.3N  86.1W
 
FORECAST VALID 23/1200Z 24.3N  87.1W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 10NE  10SE   0SW   0NW.
50 KT... 20NE  20SE   0SW  10NW.
34 KT... 60NE  60SE  10SW  40NW.
 
FORECAST VALID 24/0000Z 26.3N  87.9W
MAX WIND  70 KT...GUSTS  85 KT.
64 KT... 15NE  10SE   0SW  10NW.
50 KT... 30NE  20SE  10SW  20NW.
34 KT... 70NE  50SE  20SW  40NW.
 
FORECAST VALID 24/1200Z 28.3N  88.9W
MAX WIND  70 KT...GUSTS  85 KT.
64 KT... 15NE  10SE   0SW  10NW.
50 KT... 30NE  20SE  10SW  20NW.
34 KT... 70NE  50SE  20SW  40NW.
 
FORECAST VALID 25/0000Z 29.6N  90.4W...INLAND
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 30NE  20SE   0SW  20NW.
34 KT... 50NE  30SE  10SW  30NW.
 
FORECAST VALID 25/1200Z 30.5N  92.0W...INLAND
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 40NE   0SE   0SW  30NW.
 
FORECAST VALID 26/0000Z 30.9N  93.5W...INLAND
MAX WIND  30 KT...GUSTS  40 KT.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
 
OUTLOOK VALID 27/0000Z...DISSIPATED
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 22.8N  86.3W
 
INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 23/0600Z
 
NEXT ADVISORY AT 23/0900Z
 
$$
FORECASTER ZELINSKY
 
 
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