From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Mon Dec 20 20:31:43 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 oBKCVgGe023780 for ; Mon, 20 Dec 2010 20:31:43 +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 oBKC0M5N011630; Mon, 20 Dec 2010 06:31:23 -0600 (CST) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 4830004 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Mon, 20 Dec 2010 06:31:23 -0600 Received: from relay05.cites.uiuc.edu (relay05.cites.uiuc.edu [128.174.4.40]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oBKCVM5w013723 for ; Mon, 20 Dec 2010 06:31:22 -0600 (CST) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay05.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id oBKCVG9F010495 for ; Mon, 20 Dec 2010 06:31:22 -0600 (CST) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id 242103FE0005; Mon, 20 Dec 2010 06:31:16 -0600 (CST) X-Proofpoint-Spam-Reason: safe Message-ID: <20101220123116.242103FE0005@weather3.admin.niu.edu> Date: Mon, 20 Dec 2010 06:31:16 -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 890 ATHW40 PHFO 201230 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 1230 UTC MON DEC 20 2010 BASED ON DATA THROUGH 1200 UTC DECEMBER 20 2010 A LARGE MID TO UPPER LEVEL LOW NEAR 27N 173W WAS MOVING NORTHEAST AT OR JUST UNDER 20 MILES AN HOUR. ISOLATED THUNDERSTORMS WERE FORMING WITHIN ABOUT 100 MILES OF A LOW LEVEL CONVERGENCE ZONE ON THE EAST AND SOUTHEAST PERIPHERY OF THE UPPER LOW. THIS CONVERGENCE ZONE EXTENDED ROUGHLY FROM 09N 180E TO 13N 170W TO 20N 166W TO 26N 167W TO 30N 171W. THE THUNDERSTORMS WERE MORE NUMEROUS WEST OF 170W AND NORTH OF 25N...AND SPARSE IN THE AREA IN BETWEEN. THE HIGHEST CLOUD TOPS NEAR THE THUNDERSTORMS WERE AROUND 45000 FEET. A HANDFUL OF ISOLATED THUNDERSTORMS WERE ALSO SEEN ABOUT 80 MILES SOUTH OF THE BIG ISLAND...AND BETWEEN 60 AND 475 MILES SOUTHWEST OF THE BIG ISLAND. THE THUNDERSTORMS SOUTH OF THE BIG ISLAND WERE MOVING SLOWLY EAST. ALL THE OTHER THUNDERSTORMS IN THE REGION WERE NEARLY STATIONARY AND CONTINUALLY REFORMING IN THE SAME AREA. THE HAWAIIAN ISLANDS REMAINED UNDER A VEIL OF MOSTLY HIGH CIRRUS CLOUDS. BUT THERE WERE A GOOD AMOUNT OF LOW AND MID LEVEL CLOUDS IN THE AREA AS WELL. MULTI-LAYERED CLOUDINESS COVERED MUCH OF THE REGION BOUNDED BY POINTS 09N 180E...20N 168W...31N 172W...30N 140W...AND 23N 140W. A WEAK FRONT EXTENDED THROUGH 24N 140W TO 24N 150W BEFORE BECOMING OBSCURED BENEATH THE THICKER CLOUDS FURTHER WEST. THE SOUTH EDGE OF THE ROUGHLY 400 MILES WIDE FRONTAL CLOUD BAND EXTENDED ALONG THE FRONT AND CONTINUED THROUGH 27N 130W TO SOUTHERN CALIFORNIA. MEANWHILE...A LATE...OUT OF SEASON TROPICAL STORM NEAR 21N 177W WAS MOVING NORTHEAST NEAR 20 MILES AN HOUR AT 2 AM. $$ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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.