From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Mon Dec 20 08:47:52 2010 Received: from vacuum.cso.uiuc.edu (vacuum.cso.uiuc.edu [128.174.5.113]) by cozumel.ust.hk (8.13.8/8.13.8) with ESMTP id oBK0lodu006086 for ; Mon, 20 Dec 2010 08:47:51 +0800 Received: from vacuum.cso.uiuc.edu (vacuum.cso.uiuc.edu [128.174.5.113]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oBJJXed4022691; Sun, 19 Dec 2010 18:47:37 -0600 (CST) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 4826468 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Sun, 19 Dec 2010 18:47:37 -0600 Received: from relay09.cites.uiuc.edu (relay09.cites.uiuc.edu [128.174.4.86]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oBK0laX8006408 for ; Sun, 19 Dec 2010 18:47:36 -0600 (CST) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay09.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id oBK0lURL021726 for ; Sun, 19 Dec 2010 18:47:36 -0600 (CST) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id 5AD313FE0018; Sun, 19 Dec 2010 18:47:30 -0600 (CST) X-Proofpoint-Spam-Reason: safe Message-ID: <20101220004730.5AD313FE0018@weather3.admin.niu.edu> Date: Sun, 19 Dec 2010 18:47:30 -0600 Reply-To: wxmaster@COX.NET Sender: WX-TROPL Tropical Storm and Hurricane WX products From: LDM Weather Subject: Central Pacific: Satellite Interpretation Message To: WX-TROPL@LISTSERV.ILLINOIS.EDU Precedence: list 766 ATHW40 PHFO 200046 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 0030 UTC MON DEC 20 2010 BASED ON DATA THROUGH 0000 UTC DECEMBER 20 2010 THE MOST NOTICEABLE CLOUD FEATURE IN THE CENTRAL NORTH PACIFIC REMAINS A WEDGE-SHAPED AREA OF OVERCAST LAYERED CLOUDS...WITH EMBEDDED CUMULONIMBUS...CB...NORTH OF A LINE FROM 25N140W TO 21N155W TO 13N161W TO 08N180W. THE WESTERN EDGE OF THIS CLOUD AREA LIES ALONG A LINE FROM 24N171W TO 18N173W TO 11N180W. A 180 MILE WIDE BAND OF BROKEN TO OVERCAST LAYERED CLOUDS EXTENDS WEST FROM THE MAIN CLOUD AREA...MAINLY NORTH OF A LINE FROM 24N171W TO 18N180W...WRAPPING CYCLONICALLY TOWARD A LOW JUST WEST OF THE DATELINE. COLD CONVECTIVE CLOUD TOPS...LIKELY CB...LIE ALONG THE EASTERN EDGE OF THE MAIN CLOUD AREA SOUTH OF 20N. THE BULK OF THESE CB LIE WITHIN A RAGGED 60 TO 90 MILE WIDE BAND FROM 20N158W TO 15N161W TO 12N173W TO 09N180W. THESE CB ARE MOVING TOWARD THE NORTHEAST AT ABOUT 15 MPH. SATELLITE LOOP SHOWS THE SUBTROPICAL RIDGE LIES JUST SOUTHEAST OF THE OVERCAST LAYERED CLOUD AREA...WITH AN AXIS EXTENDING ROUGHLY THROUGH 22N140W AND 16N160W. MODERATE TRADE FLOW IS NOTED SOUTH OF THE RIDGE WITHIN SCATTERED TO PATCHY BROKEN LOW CLOUDS. BROKEN TO OVERCAST LAYERED CLOUDS COVER ALL OF THE MAIN HAWAIIAN ISLAND CHAIN...BLOCKING THE VIEW OF LOW CLOUDS THERE. ELSEWHERE...A GALE LOW WAS LOCATED JUST WEST OF THE INTERNATIONAL DATELINE NEAR 20.2N 179.9E...OR ABOUT 630 MILES SOUTH SOUTHWEST OF MIDWAY ATOLL. THIS SYSTEM IS MOVING TOWARD THE EAST SOUTHEAST AT ABOUT 10 MPH...AND CONTINUES TO EXHIBIT TROPICAL CHARACTERISTICS AS IT MOVES OVER WARM WATERS. THIS SYSTEM WILL RETURN INTO THE CENTRAL PACIFIC HURRICANE CENTER AREA OF RESPONSIBILITY BY THIS EVENING. FOR ADDITIONAL INFORMATION ON THIS GALE LOW...SEE THE HIGH SEAS FORECAST ISSUED FOR THE NORTH PACIFIC OCEAN BY THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN HONOLULU...HAWAII UNDER AWIPS HEADER HSFNP...OR WMO HEADER FZPN40 PHFO. $$ POWELL +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from WX-TROPL send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with "unsub wx-tropl" in the body of your message. For help with WX-TROPL write to cnovy@cox.net. For more information on tropical weather products, see the NHC Homepage at http://www.nhc.noaa.gov.