Tropical Depression TWO Forecast Discussion Number 6

 | By Seamus on 6/18/2013 8:20:07 PM | Views (20) Issued at 400 PM CDT TUE JUN 18 2013

000
WTNT42 KNHC 182037
TCDAT2
 
TROPICAL DEPRESSION TWO DISCUSSION NUMBER   6
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL022013
400 PM CDT TUE JUN 18 2013
 
A FEW HOURS AGO I WAS TEMPTED TO DECLARE THE DEPRESSION A REMNANT
LOW. HOWEVER...CURRENT VISIBLE SATELLITE IMAGERY AND SURFACE DATA
FROM MEXICO STILL SHOWS A LARGE CIRCULATION WITH ENOUGH DEEP
CONVECTION TO MAINTAIN THE STATUS AS A TROPICAL DEPRESSION AT THIS
TIME. THE NORTHERN PORTION OF THE CIRCULATION IS ALREADY OVER THE
SOUTHERN BAY OF CAMPECHE WHERE SOME CONVECTIVE BANDS ARE
REDEVELOPING. ASSUMING THAT THE DEPRESSION MAINTAINS OR IMPROVES ITS
CURRENT STRUCTURE...TROPICAL STORM WATCHES OR WARNINGS FOR A
PORTION OF THE MEXICAN COAST WOULD BE REQUIRED THIS EVENING.
 
THE INITIAL MOTION IS HIGHLY UNCERTAIN AND THE DEPRESSION APPEARS TO
BE MOVING TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT 9 KNOTS. THE
CURRENT TROUGH OVER THE CENTRAL GULF OF MEXICO IS FORECAST BY THE
GLOBAL MODELS TO BE REPLACED BY A NARROW RIDGE. THIS PATTERN SHOULD
KEEP THE CYCLONE MOVING SLOWLY WEST-NORTHWESTWARD AND THEN WESTWARD
OVER THE EXTREME SOUTHERN BAY OF CAMPECHE FOR THE NEXT TWO DAYS OR
SO...UNTIL THE DEPRESSION MOVES INLAND OVER MEXICO.
 
REGARDLESS OF THE EXACT TRACK OF THE CENTER AND WHETHER THE CYCLONE
DISSIPATES OR STRENGTHENS A LITTLE DURING THE NEXT COUPLE OF
DAYS...THE PRIMARY CONCERN CONTINUES TO BE HEAVY RAINFALL...WHICH
COULD CAUSE SIGNIFICANT FLOODING OVER PORTIONS OF CENTRAL AMERICA
AND EASTERN MEXICO.
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  18/2100Z 18.3N  91.9W   25 KT  30 MPH
 12H  19/0600Z 18.7N  93.3W   25 KT  30 MPH
 24H  19/1800Z 19.0N  95.0W   30 KT  35 MPH
 36H  20/0600Z 19.0N  96.0W   30 KT  35 MPH
 48H  20/1800Z 19.0N  97.0W   20 KT  25 MPH...POST-TROP/REMNT LOW
 72H  21/1800Z...DISSIPATED
 
$$
FORECASTER AVILA
 

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