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TROPICAL STORM GREG ADVISORY NUMBER   5
NATIONAL WEATHER SERVICE MIAMI FL
11 AM PDT MON SEP 06 1999

...GREG SLOWS TO A NORTHWEST DRIFT...
 
A HURRICANE WARNING REMAINS IN EFFECT FOR THE PACIFIC COAST OF THE
BAJA CALIFORNIA PENINSULA FROM ARROYO SECO SOUTH...AND FOR THE GULF
COAST OF BAJA CALIFORNIA FROM LA PAZ SOUTH.
 
A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE PACIFIC COAST OF
BAJA CALIFORNIA NORTH OF ARROYO SECO TO CABO SAN LAZARO...AND FOR
THE ISLAS MARIAS.
 
A TROPICAL STORM WATCH REMAINS IN EFFECT FOR THE PACIFIC COAST OF
BAJA CALIFORNIA NORTH OF CABO SAN LAZARO TO PUNTA ABREOJOS.
  
AT 11 AM PDT...THE CENTER OF TROPICAL STORM GREG WAS LOCATED NEAR
LATITUDE 21.4 NORTH...LONGITUDE 108.4 WEST OR ABOUT 145 MILES...230
KM...SOUTHEAST OF CABO SAN LUCAS ON THE SOUTHERN TIP OF BAJA
CALIFORNIA.
 
GREG HAS DRIFTED TOWARD THE NORTHWEST FOR THE PAST FEW HOURS. A
WEST-NORTHWEST MOTION AT A FASTER FORWARD SPEED IS EXPECTED TO
RESUME LATER TODAY OR TONIGHT.
 
MAXIMUM SUSTAINED WINDS ARE NEAR  70 MPH...110 KM/HR...WITH HIGHER
GUSTS. STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS...AND GREG
WILL LIKELY BECOME A HURRICANE LATER TODAY.
 
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 115 MILES
...185 KM FROM THE CENTER.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS  991 MB...29.26 INCHES.
 
RAINFALL AMOUNTS OF 10 TO 15 INCHES...WITH LOCALLY HIGHER AMOUNTS IN
MOUNTAINS...ARE POSSIBLE IN THE WARNING AREA...AND ALONG THE MEXICAN
MAINLAND COAST BETWEEN MANZANILLO AND MAZATLAN. LOCALLY HEAVY RAINS
ARE ALSO POSSIBLE ALONG THE MEXICAN MAINLAND COAST BETWEEN LAZARO
CARDENAS AND MANZANILLO.
 
REPEATING THE 11 AM PDT POSITION...21.4 N...108.4 W.  MOVEMENT
TOWARD...WEST NORTHWEST NEAR 10 MPH.  MAXIMUM SUSTAINED
WINDS... 70 MPH.  MINIMUM CENTRAL PRESSURE... 991 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
2 PM PDT.
 
BEVEN
 
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