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Post-Tropical Cyclone LANE Forecast Discussion
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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