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Post-Tropical Cyclone LANE Forecast Discussion Number 17

Issued at 800 AM PDT WED SEP 19 2012

000
WTPZ42 KNHC 191442
TCDEP2
 
POST-TROPICAL CYCLONE LANE DISCUSSION NUMBER  17
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP122012
800 AM PDT WED SEP 19 2012
 
LANE HAS BEEN DEVOID OF ANY DEEP CONVECTION FOR ABOUT 12 HOURS
NOW...AND IS THEREFORE BEING DESIGNATED AS A POST-TROPICAL REMNANT
LOW. BASED ON A 19/0546 UTC ASCAT OVERPASS...WHICH CAUGHT THE WEST
SIDE OF THE INNER-CORE CIRCULATION TO WITHIN 25 N MI OF THE
CENTER...SUPPORTS HOLDING THE INTENSITY AT 30 KT FOR THIS ADVISORY. 
THE CYCLONE SHOULD CONTINUE TO SPIN DOWN AND DISSIPATE ENTIRELY IN
A COUPLE OF DAYS AS IT CONTINUES TO MOVE THROUGH AN EXTENSIVE FIELD
OF STRATOCUMULUS CLOUDS AND REMAINS OVER SUB-22C SSTS.

THE REMNANT LOW CONTINUES TO TURN TO THE LEFT AND IS NOW MOVING
WESTWARD AT ABOUT 280/5. THE VERTICALLY SHALLOW CYCLONE SHOULD
CONTINUE TO MOVE SLOWLY WESTWARD UNDER THE INFLUENCE OF EASTERLY
TRADE WIND FLOW FOR THE NEXT 36 HOURS OR UNTIL DISSIPATION OCCURS.
THE OFFICIAL FORECAST TRACK IS CLOSE TO THE PREVIOUS ONE...AND IS
ROUGHLY IN THE MIDDLE OF THE TIGHTLY PACKED NHC TRACK GUIDANCE.

THIS IS THE LAST ADVISORY ON THIS SYSTEM. FOR ADDITIONAL INFORMATION
ON THE REMNANT LOW PLEASE SEE HIGH SEAS FORECASTS ISSUED BY THE
NATIONAL WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFEPI AND WMO
HEADER FZPN01 KWBC.

FORECAST POSITIONS AND MAX WINDS
 
INIT  19/1500Z 20.9N 131.3W   30 KT  35 MPH...POST-TROP/REMNT LOW
 12H  20/0000Z 21.0N 132.4W   25 KT  30 MPH...POST-TROP/REMNT LOW
 24H  20/1200Z 20.9N 134.2W   25 KT  30 MPH...POST-TROP/REMNT LOW
 36H  21/0000Z 20.8N 135.9W   20 KT  25 MPH...POST-TROP/REMNT LOW
 48H  21/1200Z...DISSIPATED
 
$$
FORECASTER STEWART
 

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