EPAC: ALETTA - Post Tropical

[cycloneye]

I had never seen a discussion that is this short,but Dr Avila goes to the point.

TROPICAL DEPRESSION ALETTA DISCUSSION NUMBER 20
NWS NATIONAL HURRICANE CENTER MIAMI FL EP012012
200 AM PDT SAT MAY 19 2012

ALETTA CONSISTS OF A SWIRL OF LOW CLOUDS WITH A FEW SHOWERS IN THE
NORTHEAST QUADRANT WELL REMOVED FROM THE CENTER. DUE TO PREVAILING
SHEAR AND DRY AIR...THE CYCLONE SHOULD DEGENERATE INTO A REMNANT
LOW LATER TODAY.

ALETTA IS DRIFTING EASTWARD AND SHOULD SOON BEGIN TO MEANDER
SOUTHWARD STEERED BY THE LOW-LEVEL FLOW UNTIL DISSIPATION.


FORECAST POSITIONS AND MAX WINDS

INIT 19/0900Z 14.6N 112.8W 25 KT 30 MPH
12H 19/1800Z 14.5N 112.7W 25 KT 30 MPH...POST-TROP/REMNT LOW
24H 20/0600Z 14.0N 112.5W 20 KT 25 MPH...POST-TROP/REMNT LOW
36H 20/1800Z 13.0N 112.5W 20 KT 25 MPH...POST-TROP/REMNT LOW
48H 21/0600Z 12.0N 113.0W 20 KT 25 MPH...POST-TROP/REMNT LOW
72H 22/0600Z...DISSIPATED

$$
FORECASTER AVILA

[NDG]

I am surprised it has remained a TD this long.

[Yellow Evan]

Me too. Should be dead by late morning.

[cycloneye]

Last Advisory Written

BULLETIN
POST-TROPICAL CYCLONE ALETTA ADVISORY NUMBER 21
NWS NATIONAL HURRICANE CENTER MIAMI FL EP012012
800 AM PDT SAT MAY 19 2012

...ALETTA BECOMES POST-TROPICAL...THIS IS THE LAST ADVISORY...


SUMMARY OF 800 AM PDT...1500 UTC...INFORMATION
----------------------------------------------
LOCATION...14.8N 112.5W
ABOUT 585 MI...940 KM SSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...ENE OR 65 DEGREES AT 5 MPH...7 KM/H
MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES


WATCHES AND WARNINGS
--------------------
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 AM PDT...1500 UTC...THE CENTER OF POST-TROPICAL CYCLONE
ALETTA WAS LOCATED NEAR LATITUDE 14.8 NORTH...LONGITUDE 112.5 WEST.
ALETTA IS MOVING TOWARD THE EAST-NORTHEAST AT 5 MPH...7 KM/H. A
GRADUAL TURN TOWARD THE SOUTH IS EXPECTED TO OCCUR LATER TODAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 30 MPH...45 KM/H...WITH HIGHER
GUSTS. THE POST-TROPICAL CYCLONE IS EXPECTED TO DISSIPATE IN A
COUPLE OF DAYS.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 1006 MB...29.71 INCHES.


HAZARDS AFFECTING LAND
----------------------
NONE


NEXT ADVISORY
-------------
THIS IS THE LAST PUBLIC ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON ALETTA. FOR ADDITIONAL INFORMATION ON THE REMNANTS OF
ALETTA PLEASE SEE HIGH SEAS FORECASTS ISSUED BY THE NATIONAL
WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFEPI AND WMO HEADER
FZPN01 KWBC.

$$
FORECASTER CANGIALOSI


POST-TROPICAL CYCLONE ALETTA DISCUSSION NUMBER 21
NWS NATIONAL HURRICANE CENTER MIAMI FL EP012012
800 AM PDT SAT MAY 19 2012

ALTHOUGH A FEW SHOWERS ARE LINGERING ABOUT 60 TO 90 N MI TO THE
NORTH OF THE CENTER OF ALETTA...THIS CONVECTIVE ACTIVITY IS NOT
ENOUGH TO MAINTAIN THE SYSTEM AS A TROPICAL CYCLONE. IN FACT...
ALETTA HAS BEEN DEVOID OF ORGANIZED DEEP CONVECTION FOR AT LEAST 12
HOURS. THEREFORE...THE CYCLONE IS NOW A POST-TROPICAL REMNANT LOW
AND THIS IS THE LAST ADVISORY ON THIS SYSTEM. FOR FUTURE
INFORMATION ON THE REMNANTS OF ALETTA PLEASE SEE HIGH SEAS
FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER AWIPS
HEADER NFDHSFEPI AND WMO HEADER FZPN01 KWBC.

THE POST-TROPICAL CYCLONE IS MOVING EAST-NORTHWARD AT ABOUT 4 KT. A
GRADUAL TURN TO THE SOUTH IS FORECAST TO OCCUR LATER TODAY...AND
THE REMNANT LOW IS EXPECTED TO CONTINUE MOVING IN THAT GENERAL
DIRECTION UNTIL IT DISSIPATES IN ABOUT 48 HOURS.

FORECAST POSITIONS AND MAX WINDS

INIT 19/1500Z 14.8N 112.5W 25 KT 30 MPH...POST-TROP/REMNT LOW
12H 20/0000Z 14.4N 112.4W 25 KT 30 MPH...POST-TROP/REMNT LOW
24H 20/1200Z 13.5N 112.3W 20 KT 25 MPH...POST-TROP/REMNT LOW
36H 21/0000Z 12.7N 112.6W 20 KT 25 MPH...POST-TROP/REMNT LOW
48H 21/1200Z...DISSIPATED

$$
FORECASTER CANGIALOSI

[RL3AO]

See ya in 2018.

[Yellow Evan]

good bye Aletta, sorry the wind shear took you apart.