[PHX-Skywarn] [Fwd: "Hurricane Summer"]

[Stan Weintraub]

And -

On Our Side Of the Continent:



ABPZ30 KNHC 011420
TWSEP
MONTHLY TROPICAL WEATHER SUMMARY
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
8 AM PDT WED OCT 1 2004

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

...SUMMARY OF EAST PACIFIC TROPICAL CYCLONES FOR SEPTEMBER 2004...

TWO TROPICAL CYCLONES DEVELOPED DURING SEPTEMBER IN THE EASTERN 
PACIFIC...HURRICANES ISIS AND JAVIER.  THIS IS BELOW THE
CLIMATOLOGICAL AVERAGE OF....IN ADDITION...HOWARD WHICH FORMED ON 30 AUGUST 
BECAME A HURRICANE IN SEPTEMBER.

HOWARD FORMED ON THE AUGUST 30TH ABOUT 350 N MI SOUTHWEST OF ACAPULCO 
MEXICO.  MOVING TO THE WEST-NORTHWEST...THE CYCLONE REACHED TROPICAL STORM 
STRENGTH ON THE 31ST AND HURRICANE STRENGTH ON 1 SEPTEMBER.  HOWARD TURNED 
NORTHWESTWARD ON 2 SEPTEMBER AS IT REACHED AS MAXIMUM SUSTAINED WINDS 
REACHED AN ESTIMATED 120 KT.
HOWARD WEAKENED AND TURNED NORTH-NORTHWESTWARD ON THE 3RD.  IT WEAKENED TO A 
TROPICAL STORM ON THE 4TH AND A TROPICAL DEPRESSION
ON THE 5TH.  THE CYCLONE DISSIPATED LATER THAT DAY ABOUT 5120 N MI 
EAST-NORTHEAST OF CABO SAN LUCAS AT THE SOUTHERN END OF BAJA CALIFORNIA.

ISIS FORMED AS A DEPRESSION ON 8 SEPTEMBER ABOUT 450 N MI SOUTH OF CABO SAN 
LUCAS.  THE DEPRESSION MOVED WESTWARD AND BECAME A TROPICAL STORM LATER THAT 
DAY AS IT TURNED TO THE NORTHWEST.
STRONG NORTHEASTERLY SHEAR PREVENTED ADDITIONAL DEVELOPMENT...AND ON 10 
SEPTEMBER ISIS LOST ITS DEEP CONVECTION...TURNED WESTWARD...AND WEAKENED 
BACK TO A TROPICAL DEPRESSION.  EASTERLY SHEAR BEGAN TO DIMINISH...AND ISIS 
REGAINED TROPICAL STORM STATUS ON 12 SEPTEMBER WHEN IT WAS ABOUT 725 N MI 
WEST-SOUTHWEST OF CABO SAN LUCAS.  ISIS CONTINUED GENERALLY WESTWARD FOR 
THREE DAYS...GRADUALLY STRENGTHENING...AND BRIEFLY ATTAINED HURRICANE
INTENSITY WHILE MOVING NORTHWESTWARD ON 15 SEPTEMBER ABOUT 1250 N MI 
WEST-SOUTHWEST OF CABO SAN LUCAS.  ISIS HAD MOVED OVER COOL WATERS WHEN 
STEERING CURRENTS COLLAPSED ON 15 SEPTEMBER.  ISIS MOVED LITTLE OVER THE 
NEXT COUPLE OF DAYS WHILE WEAKENING...AND ISIS DEGENERATED TO A REMNANT LOW 
ON 17 SEPTEMBER.

JAVIER FORMED AS A TROPICAL DEPRESSION ON 10 SEPTEMBER ABOUT 300 N MI SOUTH 
OF THE GULF OF TEHUANTEPEC. THE DEPRESSION MOVED BETWEEN THE WEST AND 
WEST-NORTHWEST AND BECAME TROPICAL STORM JAVIER ON THE 11TH. IT REACHED 
HURRICANE STATUS ON THE 12TH. THEREAFTER...JAVIER TURNED TO THE NORTHWEST 
AND INTENSIFIED RAPIDLY...REACHING ITS PEAK
INTENSITY OF 130 KNOTS ON THE 14TH ABOUT 220 N MI SOUTH-SOUTHWEST OF 
MANZANILLO. JAVIER TURNED TO THE NORTH-NORTHWEST AND NORTH TOWARD BAJA 
CALIFORNIA BUT IT MOVED VERY SLOWLY OVER COOLER WATERS AND WEAKENED.  BY THE 
TIME JAVIER REACHED THE WEST COAST OF BAJA CALIFORNIA NEAR SAN IGNACIO ON 19 
SEPTEMBER...THE CYCLONE HAD WEAKENED TO A 25-KNOT TROPICAL DEPRESSION 
ACCOMPANIED BY A FEW
SQUALLS. JAVIER DISSIPATED LATER ON THAT DAY BUT ITS MID-LEVEL
MOISTURE SPREAD NORTHEASTWARD OVER NORTHERN MEXICO AND ARIZONA.



SUMMARY TABLE - SEPTEMBER 2004

NAME             DATES            MAX WIND-KT          DEATHS
-------------------------------------------------------------------
H  HOWARD    30 AUG- 5 SEP          120                  0
H  ISIS           8-17 SEP           65                  0
H  JAVIER        11-19 SEP          130                  0
-------------------------------------------------------------------
NOTE: DATES ARE BASED ON UNIVERSAL COORDINATED TIME...UTC
*****************************************************

Stan
KC7CJS - AZ SW Sec. 1