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BULLETIN
HURRICANE GREG ADVISORY INTERMEDIATE NUMBER 9A
NATIONAL WEATHER SERVICE MIAMI FL
11 AM PDT TUE SEP 07 1999

...DISORGANIZED GREG DRIFTING NORTH-NORTHWEST...
 
A HURRICANE WARNING REMAINS IN EFFECT FOR BAJA CALIFORNIA FROM
ARROYO SECO SOUTHWARD ON THE PACIFIC COAST AND FROM LA PAZ SOUTHWARD
ON THE GULF COAST.
 
A TROPICAL STORM WARNING REMAINS IN EFFECT FOR BAJA CALIFORNIA FROM
NORTH OF ARROYO SECO TO CABO SAN LAZARO ON THE PACIFIC COAST.
 
A TROPICAL STORM WATCH REMAINS IN EFFECT FOR BAJA CALIFORNIA FROM
NORTH OF CABO SAN LAZARO TO PUNTA ABREOJOS ON THE PACIFIC COAST AND
FROM NORTH OF LA PAZ TO LORETO ON THE GULF COAST.

AT 11 AM PDT...1800Z...THE CENTER OF HURRICANE GREG WAS LOCATED NEAR
LATITUDE 22.7 NORTH...LONGITUDE 109.6 WEST OR ABOUT 25 MILES...40
KM...EAST-SOUTHEAST OF CABO SAN LUCAS AT THE SOUTHERN END OF THE
BAJA CALIFORNIA PENINSULA.
 
GREG HAS BEEN DRIFTING NORTH-NORTHWEST FOR THE PAST FEW HOURS. A
SLOW NORTHWEST MOTION IS EXPECTED TO RESUME LATER TODAY OR TONIGHT.
THIS SHOULD BRING THE CENTER NEAR OR OVER THE SOUTHERN END OF BAJA
CALIFORNIA LATER TODAY OR TONIGHT.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/HR...WITH HIGHER
GUSTS. SATELLITE IMAGERY...MEXICAN RADAR DATA...AND SURFACE
OBSERVATIONS INDICATE THAT THUNDERSTORM ACTIVITY ASSOCIATED WITH
GREG HAS BECOME DISORGANIZED AND IS MAINLY SOUTH OF THE CENTER. IF
CURRENT TRENDS CONTINUE...GREG WILL LIKELY DOWNGRADED TO A TROPICAL
STORM LATER TODAY.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  30 MILES... 45 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO  85 MILES...140 KM.
 
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS  990 MB...29.23 INCHES.
 
RAINFALL AMOUNTS OF 8 TO 12 INCHES...WITH LOCALLY HIGHER AMOUNTS
...ARE POSSIBLE OVER THE WARNING AREA.  HEAVY RAINS ARE ALSO
CONTINUING OVER MAINLAND MEXICO BETWEEN LOS MOCHIS AND MANZANILLO.
 
REPEATING THE 11 AM PDT POSITION...22.7 N...109.6 W.  MOVEMENT...
DRIFTING NORTH-NORTHWEST.  MAXIMUM SUSTAINED WINDS...75 MPH. MINIMUM
CENTRAL PRESSURE... 990 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
2 PM PDT.
 
BEVEN
 
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