Ed DunhamAdministrator
(Former Meteorologist & CFHC Forum Moderator (Ed Passed Away on May 14, 2017))
Mon Dec 20 2010 09:21 AM
Tropical Storm Okema West of Hawaiian Islands

From CPHC:

"Tropical Storm OMEKA Advisory Number 1
Issued at 1100 PM HST SUN DEC 19 2010
SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION
-----------------------------------------------
Location: 20.9N 178.2W
ABOUT 505 MI S OF MIDWAY ISLAND
ABOUT 1210 MI W OF LIHUE HAWAII
Maximum sustained winds: 50 MPH
Present movement: NE or 50 degrees AT 14 MPH
Minimum central pressure: 997 MB...29.44 INCHES"

TROPICAL STORM OMEKA DISCUSSION NUMBER 1
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI CP012010
1033 PM HST SUN DEC 19 2010

SATELLITE IMAGERY INDICATES THAT TROPICAL STORM OMEKA...WHICH MOVED
EAST OF THE INTERNATIONAL DATELINE DURING THE LAST SIX HOURS...HAS
ASSUMED A SHEARED PATTERN WITH A WELL DEFINED LOW LEVEL CIRCULATION
CENTER WEST OF A DENSE THUNDERSTORM CLUSTER. THE TROPICAL STORM
INTENSITY IS BASED ON A DVORAK ESTIMATE OF 3.0 OR 45 KT FROM HFO.
PERSISTENT SHEAR FROM THE WEST WILL EVENTUALLY CAUSE THE DEMISE OF
OMEKA IN THE NEXT 48 HOURS OR SO.

THE 06Z OFFICIAL POSITION IS BASED ON A 0530Z FIX FROM HFO. INITIAL
MOTION IS TO THE NORTHEAST AT 14 MPH...AND IS FORECAST TO TURN TO
THE NORTH OVER THE NEXT 24 TO 48 HOURS. THE TRACK MOVES OMEKA EAST
OF MIDWAY ISLAND AS A TROPICAL DEPRESSION. THE OFFICIAL TRACK IS IN
THE MIDDLE OF A LIMITED NUMBER OF OBJECTIVE AIDES.

FORECAST POSITIONS AND MAX WINDS

INITIAL 20/0900Z 20.9N 178.2W 45 KT
12HR VT 20/1800Z 22.0N 176.5W 40 KT
24HR VT 21/0600Z 24.9N 175.0W 35 KT
36HR VT 21/1800Z 28.7N 174.4W 30 KT
48HR VT 22/0600Z 33.4N 174.8W 20 KT...POST-TROP/REMNT LOW