Post by NHC Olney Maryland on Aug 30, 2008 11:15:29 GMT -5
BULLETIN
HURRICANE GUSTAV ADVISORY NUMBER 20
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL072008
500 PM EDT FRI AUG 29 2008
...GUSTAV BECOMES A HURRICANE OVER THE NORTHWESTERN CARIBBEAN...
AT 500 PM EDT...2100 UTC...A TROPICAL STORM WATCH IS ISSUED FOR THE
LOWER FLORIDA KEYS FROM WEST OF THE SEVEN MILE BRIDGE WESTWARD TO
DRY TORTUGAS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM
CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36
HOURS.
A HURRICANE WARNING REMAINS IN EFFECT FOR THE CAYMAN ISLANDS...AND
FOR THE WESTERN CUBAN PROVINCES OF ISLA DE JUVENTUD...PINAR DEL
RIO...LA HABANA...AND CIUDAD DE LA HABANA.
A TROPICAL STORM WARNING REMAINS IN EFFECT FOR JAMAICA...AND FOR THE
CENTRAL CUBAN PROVINCES OF MATANZAS...CIENFUEGOS...VILLA
CLARA...SANCTI SPIRITUS...CIEGO DE AVILA...CAMAGUEY...AND GRANMA.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE.
AT 500 PM EDT...2100Z...THE CENTER OF HURRICANE GUSTAV WAS LOCATED
NEAR LATITUDE 19.2 NORTH...LONGITUDE 79.7 WEST OR ABOUT 100 MILES...
160 KM...EAST OF GRAND CAYMAN AND ABOUT 380 MILES...610 KM...
EAST-SOUTHEAST OF THE WESTERN TIP OF CUBA.
GUSTAV IS MOVING TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/HR...AND
THIS GENERAL MOTION IS EXPECTED TO CONTINUE DURING THE NEXT COUPLE
OF DAYS. ON THIS TRACK...THE CENTER OF GUSTAV WILL PASS NEAR OR
OVER THE CAYMAN ISLANDS TONIGHT...OVER THE WESTERN PORTIONS OF CUBA
ON SATURDAY...AND INTO THE SOUTHERN GULF OF MEXICO ON SATURDAY
NIGHT OR SUNDAY.
DATA FROM AN AIR FORCE RECONNAISSANCE AIRCRAFT INDICATE THAT MAXIMUM
SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/HR...WITH HIGHER GUSTS.
GUSTAV IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON SCALE.
STRENGTHENING IS FORECAST DURING THE NEXT COUPLE OF DAYS...AND
GUSTAV COULD BECOME A MAJOR HURRICANE NEAR THE TIME IT CROSSES
WESTERN CUBA.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 30 MILES...45 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 160
MILES...260 KM.
THE MINIMUM CENTRAL PRESSURE RECENTLY REPORTED BY THE RECONNAISSANCE
AIRCRAFT WAS 980 MB...28.94 INCHES.
COASTAL STORM SURGE FLOODING OF 2 TO 5 FEET ABOVE NORMAL TIDE LEVELS
IS POSSIBLE IN THE CAYMAN ISLANDS...WITH 8 TO 13 FEET POSSIBLE NEAR
WHERE THE CENTER OF GUSTAV CROSSES WESTERN CUBA...INCLUDING ISLA DE
JUVENTUD.
GUSTAV IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS OF 6 TO
12 INCHES ACROSS JAMAICA...THE CAYMAN ISLANDS...AND WESTERN
CUBA...WITH ISOLATED MAXIMUM AMOUNTS OF UP TO 25 INCHES POSSIBLE.
THESE RAINS WILL LIKELY PRODUCE LIFE-THREATENING FLASH FLOODS AND
MUD SLIDES. RAINFALL ACCUMULATIONS OF 2 TO 4 INCHES ARE POSSIBLE
OVER SOUTHERN CUBA.
REPEATING THE 500 PM EDT POSITION...19.2 N...79.7 W. MOVEMENT
TOWARD...NORTHWEST NEAR 12 MPH. MAXIMUM SUSTAINED WINDS...75 MPH.
MINIMUM CENTRAL PRESSURE...980 MB.
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 800 PM EDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 1100
PM EDT.
HURRICANE GUSTAV ADVISORY NUMBER 20
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL072008
500 PM EDT FRI AUG 29 2008
...GUSTAV BECOMES A HURRICANE OVER THE NORTHWESTERN CARIBBEAN...
AT 500 PM EDT...2100 UTC...A TROPICAL STORM WATCH IS ISSUED FOR THE
LOWER FLORIDA KEYS FROM WEST OF THE SEVEN MILE BRIDGE WESTWARD TO
DRY TORTUGAS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM
CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36
HOURS.
A HURRICANE WARNING REMAINS IN EFFECT FOR THE CAYMAN ISLANDS...AND
FOR THE WESTERN CUBAN PROVINCES OF ISLA DE JUVENTUD...PINAR DEL
RIO...LA HABANA...AND CIUDAD DE LA HABANA.
A TROPICAL STORM WARNING REMAINS IN EFFECT FOR JAMAICA...AND FOR THE
CENTRAL CUBAN PROVINCES OF MATANZAS...CIENFUEGOS...VILLA
CLARA...SANCTI SPIRITUS...CIEGO DE AVILA...CAMAGUEY...AND GRANMA.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE.
AT 500 PM EDT...2100Z...THE CENTER OF HURRICANE GUSTAV WAS LOCATED
NEAR LATITUDE 19.2 NORTH...LONGITUDE 79.7 WEST OR ABOUT 100 MILES...
160 KM...EAST OF GRAND CAYMAN AND ABOUT 380 MILES...610 KM...
EAST-SOUTHEAST OF THE WESTERN TIP OF CUBA.
GUSTAV IS MOVING TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/HR...AND
THIS GENERAL MOTION IS EXPECTED TO CONTINUE DURING THE NEXT COUPLE
OF DAYS. ON THIS TRACK...THE CENTER OF GUSTAV WILL PASS NEAR OR
OVER THE CAYMAN ISLANDS TONIGHT...OVER THE WESTERN PORTIONS OF CUBA
ON SATURDAY...AND INTO THE SOUTHERN GULF OF MEXICO ON SATURDAY
NIGHT OR SUNDAY.
DATA FROM AN AIR FORCE RECONNAISSANCE AIRCRAFT INDICATE THAT MAXIMUM
SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/HR...WITH HIGHER GUSTS.
GUSTAV IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON SCALE.
STRENGTHENING IS FORECAST DURING THE NEXT COUPLE OF DAYS...AND
GUSTAV COULD BECOME A MAJOR HURRICANE NEAR THE TIME IT CROSSES
WESTERN CUBA.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 30 MILES...45 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 160
MILES...260 KM.
THE MINIMUM CENTRAL PRESSURE RECENTLY REPORTED BY THE RECONNAISSANCE
AIRCRAFT WAS 980 MB...28.94 INCHES.
COASTAL STORM SURGE FLOODING OF 2 TO 5 FEET ABOVE NORMAL TIDE LEVELS
IS POSSIBLE IN THE CAYMAN ISLANDS...WITH 8 TO 13 FEET POSSIBLE NEAR
WHERE THE CENTER OF GUSTAV CROSSES WESTERN CUBA...INCLUDING ISLA DE
JUVENTUD.
GUSTAV IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS OF 6 TO
12 INCHES ACROSS JAMAICA...THE CAYMAN ISLANDS...AND WESTERN
CUBA...WITH ISOLATED MAXIMUM AMOUNTS OF UP TO 25 INCHES POSSIBLE.
THESE RAINS WILL LIKELY PRODUCE LIFE-THREATENING FLASH FLOODS AND
MUD SLIDES. RAINFALL ACCUMULATIONS OF 2 TO 4 INCHES ARE POSSIBLE
OVER SOUTHERN CUBA.
REPEATING THE 500 PM EDT POSITION...19.2 N...79.7 W. MOVEMENT
TOWARD...NORTHWEST NEAR 12 MPH. MAXIMUM SUSTAINED WINDS...75 MPH.
MINIMUM CENTRAL PRESSURE...980 MB.
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 800 PM EDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 1100
PM EDT.