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Active Tropical Systems Basin Outlooks Satellite
May 2006 Eastern Pacific Monthly Summary
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000
ABPZ30 KNHC 011608
TWSEP
MONTHLY TROPICAL WEATHER SUMMARY
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0800 AM PDT THU JUN 01 2006

FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE..

ONE TROPICAL CYCLONE...TROPICAL STORM ALETTA...FORMED DURING THE
MONTH OF MAY 2006.  NAMED TROPICAL CYCLONES IN MAY ARE SOMEWHAT
INFREQUENT EVENTS...WITH AN AVERAGE OF ONE TROPICAL STORM EVERY TWO
YEARS AND A HURRICANE ONLY ABOUT EVERY THREE YEARS.
INTERESTINGLY...HOWEVER...THIS IS THE SEVENTH CONSECUTIVE YEAR TO
HAVE A NAMED CYCLONE FORM IN MAY...WHEREAS DURING THE PREVIOUS
SEVEN-YEAR PERIOD THERE WAS ONLY ONE.

ALETTA FORMED AS A RESULT OF THE INTERACTION OF A WESTWARD-MOVING
TROPICAL WAVE  WITH A LOW-LEVEL TROUGH NEAR THE GULF OF
TEHUANTEPEC.  THIS INTERACTION EVENTUALLY PRODUCED A BROAD LOW
PRESSURE AREA LOCATED SEVERAL HUNDRED MILES SOUTH OF ACAPULCO
MEXICO ON 25 MAY.  THE SYSTEM EVENTUALLY ORGANIZED INTO A TROPICAL
DEPRESSION CENTERED ABOUT 165 N MI SOUTHWEST OF ACAPULCO EARLY ON
27 MAY.  THE TROPICAL CYCLONE MOVED SLOWLY WHILE STRENGTHENING INTO
A TROPICAL STORM LATER THAT SAME DAY.  ALETTA DRIFTED
ERRATICALLY...EXECUTING A COUNTERCLOCKWISE LOOP ABOUT 100 N MI
SOUTHWEST OF ACAPULCO ON 28 MAY.  THE CYCLONE BEGAN DRIFTING
WESTWARD ON 29 MAY WHILE WEAKENING TO A TROPICAL DEPRESSION.
ALETTA CONTINUED TO WEAKEN...AND DISSIPATED ABOUT 170 N MI
SOUTH-SOUTHEAST OF MANZANILLO MEXICO ON 30 MAY.

ALETTA PRODUCED SOME LOCALLY HEAVY RAINS OVER PORTIONS OF SOUTHERN
MEXICO WITH A 24-HOUR TOTAL 3.6 INCHES IN THE STATE OF OAXACA.
THERE WERE NO REPORTS OF CASUALTIES OR DAMAGE.

SUMMARY TABLE

NAME           DATES           MAX WIND (KT)     DEATHS
-------------------------------------------------------
TS ALETTA      27-30 MAY       40                0
-------------------------------------------------------
NOTE...DATES BASED ON COORDINATED UNIVERSAL TIME (UTC)

FORECASTER PASCH

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