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ZCZC MIATWSEP 
TTAA00 KNHC 011251
MONTHLY TROPICAL WEATHER SUMMARY
NATIONAL WEATHER SERVICE MIAMI FL
8 AM PST FRI OCT 1 1999
 
FOR THE NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE...

...SUMMARY OF TROPICAL CYCLONE ACTIVITY DURING OCTOBER...

DURING THE MONTH OF SEPTEMBER...ONLY ONE TROPICAL CYCLONE FORMED 
IN THE EASTERN PACIFIC...TROPICAL STORM IRWIN.  

TROPICAL CYCLONE ACTIVITY HAS BEEN WELL BELOW AVERAGE SO FAR IN
1999. TO DATE THE SEASON HAS PRODUCED A TOTAL OF 9 NAMED STORMS
...6 HURRICANES...AND 2 MAJOR HURRICANES.  IN AN AVERAGE SEASON
...BY NOVEMBER 1ST THERE WOULD HAVE BEEN 16 NAMED STORMS...9
HURRICANES...AND 4 MAJOR HURRICANES.

IRWIN FORMED EARLY ON THE 8TH OF OCTOBER ABOUT 150 MILES TO THE
SOUTH-SOUTHWEST OF MANZANILLO MEXICO.  THE CYCLONE MOVED SLOWLY
NORTHWARD...AND STRENGTHENED INTO A TROPICAL STORM WHILE CENTERED
ABOUT 100 MILES SOUTH-SOUTHWEST OF MANZANILLO LATER ON THE 8TH. 
IRWIN THREATENED THE COAST OF MEXICO...BUT ON THE 9TH THE STORM
TURNED TOWARD THE WEST AWAY FROM THE MAINLAND.  THAT SAME DAY...
IRWIN REACHED ITS PEAK INTENSITY OF 50 KNOTS WHILE CENTERED A
LITTLE OVER 300 MILES SOUTH-SOUTHWEST OF CABO SAN LUCAS.  THE 
STORM MOVED WESTWARD TO WEST-SOUTHWESTWARD FOR THE NEXT DAY OR
SO...WHILE GRADUALLY WEAKENING TO A DEPRESSION AS IT NEARED SOCORRO
ISLAND ON THE 10TH.  IRWIN DISSIPATED ON THE 11TH ABOUT 400 MILES
SOUTHWEST OF CABO SAN LUCAS MEXICO.
 
                             SUMMARY TABLE

                                        MAXIMUM WIND
   NAME                 DATES             (KNOTS)        DEATHS
  -------           ---------------    -------------     -------
  IRWIN              8 OCT - 11 OCT          50             0 

FRANKLIN/GUINEY/PASCH


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