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TROPICAL STORM IRMA FORECAST/ADVISORY NUMBER  50
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL112017
1500 UTC MON SEP 11 2017
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
THE STORM SURGE WARNING HAS BEEN DISCONTINUED FROM BONITA BEACH
SOUTHWARD.
 
THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED FOR LAKE
OKEECHOBEE.
 
THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED FROM THE
VOLUSIA/BREVARD COUNTY LINE SOUTHWARD.
 
THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED SOUTH OF ANCLOTE
RIVER.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT... 
 
A STORM SURGE WARNING IS IN EFFECT FOR...
* SOUTH SANTEE RIVER SOUTHWARD TO THE FLAGLER/VOLUSIA COUNTY LINE
* NORTH OF BONITA BEACH TO THE OCHLOCKONEE RIVER
* TAMPA BAY
 
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* ANCLOTE RIVER TO THE OKALOOSA/WALTON COUNTY LINE
* NORTH OF THE VOLUSIA/BREVARD COUNTY LINE TO THE SOUTH SANTEE
RIVER
 
A STORM SURGE WARNING MEANS THERE IS A DANGER OF LIFE-THREATENING
INUNDATION... FROM RISING WATER MOVING INLAND FROM THE COASTLINE... 
DURING THE NEXT 36 HOURS IN THE INDICATED LOCATIONS. FOR A
DEPICTION OF AREAS AT RISK... PLEASE SEE THE NATIONAL WEATHER
SERVICE STORM SURGE WATCH/WARNING GRAPHIC... AVAILABLE AT
HURRICANES.GOV.  THIS IS A LIFE-THREATENING SITUATION.  PERSONS
LOCATED WITHIN THESE AREAS SHOULD TAKE ALL NECESSARY ACTIONS TO
PROTECT LIFE AND PROPERTY FROM RISING WATER AND THE POTENTIAL FOR
OTHER DANGEROUS CONDITIONS.  PROMPTLY FOLLOW EVACUATION AND OTHER
INSTRUCTIONS FROM LOCAL OFFICIALS.
 
INTERESTS ELSEWHERE IN THE SOUTHEASTERN UNITED STATES SHOULD MONITOR
THE PROGRESS OF IRMA.
 
TROPICAL STORM CENTER LOCATED NEAR 30.3N  83.1W AT 11/1500Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE NORTH-NORTHWEST OR 340 DEGREES AT  15 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  975 MB
MAX SUSTAINED WINDS  55 KT WITH GUSTS TO  65 KT.
50 KT.......140NE 140SE  90SW 120NW.
34 KT.......360NE 230SE 150SW 200NW.
12 FT SEAS..500NE 360SE 450SW   0NW.
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 30.3N  83.1W AT 11/1500Z
AT 11/1200Z CENTER WAS LOCATED NEAR 29.6N  82.7W
 
FORECAST VALID 12/0000Z 32.0N  84.5W...INLAND
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 60NE  50SE  50SW  50NW.
34 KT...220NE 120SE 100SW 100NW.
 
FORECAST VALID 12/1200Z 33.9N  86.6W...INLAND
MAX WIND  30 KT...GUSTS  40 KT.
 
FORECAST VALID 13/0000Z 35.0N  88.4W...POST-TROP/INLAND
MAX WIND  25 KT...GUSTS  35 KT.
 
FORECAST VALID 13/1200Z 36.0N  89.0W...POST-TROP/INLAND
MAX WIND  20 KT...GUSTS  30 KT.
 
FORECAST VALID 14/1200Z...DISSIPATED
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 30.3N  83.1W
 
NEXT ADVISORY AT 11/2100Z
 
$$
FORECASTER PASCH
 
 
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