From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Sun Dec 19 20:27:00 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 oBJCQxcn021999 for ; Sun, 19 Dec 2010 20:26:59 +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 oBI60D7N027712; Sun, 19 Dec 2010 06:26:42 -0600 (CST) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 4822028 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Sun, 19 Dec 2010 06:26:41 -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 oBJCQf3m026130 for ; Sun, 19 Dec 2010 06:26:41 -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 oBJCQYEI005149 for ; Sun, 19 Dec 2010 06:26:41 -0600 (CST) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id D95BD3FE0881; Sun, 19 Dec 2010 06:26:34 -0600 (CST) X-Proofpoint-Spam-Reason: safe Message-ID: <20101219122634.D95BD3FE0881@weather3.admin.niu.edu> Date: Sun, 19 Dec 2010 06:26:34 -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 237 ATHW40 PHFO 191226 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 1230 UTC SUN DEC 19 2010 BASED ON DATA THROUGH 1200 UTC DECEMBER 19 2010 ACCORDING TO LOOPS OF WATER VAPOR IMAGERY AND SATELLITE DERIVED UPPER LEVEL WINDS...AN UPPER TROPOSPHERIC LOW WAS CENTERED JUST EAST OF THE INTERNATIONAL DATE LINE NEAR 25N 176.5W. THIS FEATURE HAS BEEN NEARLY STATIONARY DURING THE PAST 6 HOURS. EAST OF THIS UPPER LEVEL LOW...THE CORE OF A SUBTROPICAL JET EXTENDED FROM NEAR 14N 177W TO 23N 169W TO 27.5N 167.5W. A BROAD AREA OF OVERCAST LAYERED CLOUDS WITH RAIN AND EMBEDDED THUNDERSTORMS ASSOCIATED WITH THE DIFFLUENCE ALOFT DUE TO THIS JET WAS ABOUT 700 MILES EAST OF A LINE FROM 13.5N 176.5W TO 21N 170.5W TO 27N 169.5W. THE HIGHEST TOPS OF THE CUMULONIMBUS CLOUDS WITHIN THIS AREA WERE ESTIMATED TO BE ABOUT 51 THOUSAND FEET. AS OF 1200 AM HST SUNDAY...THE EASTERN EDGE OF THESE LAYERED CLOUDS AND PRECIPITATION WERE OVER THE WESTERN HAWAIIAN ISLANDS. BROKEN TO OVERCAST CIRRUS CLOUDS WERE OBSCURING ANY LOW CLOUDS THAT WERE OVER THE REST OF THE STATE IN INFRARED SATELLITE IMAGERY. RADAR REFLECTIVITY DATA INDICATED NUMEROUS SHOWERS...SOME WITH LOCALLY HEAVY RAINFALL...WERE OVER OAHU. ADDITIONAL ISOLATED HEAVY SHOWERS WERE IN THE VICINITY OF KAUAI AND NIIHAU. THE INDIVIDUAL SHOWERS APPEARED TO BE MOVING TOWARD THE NORTH AT NEARLY 20 MPH. THERE WERE MAINLY ISOLATED SHOWERS OVER THE COASTAL WATERS SOUTH AND SOUTHWEST OF MOLOKAI AND LANAI...WHILE SCATTERED SHOWERS WERE ALONG THE SOUTHERN SHORES OF THE BIG ISLAND. ELSEWHERE...A GALE LOW WAS LOCATED JUST WEST OF THE INTERNATIONAL DATELINE NEAR 21.3N 179.3E...OR ABOUT 525 MILES SOUTH SOUTHWEST OF MIDWAY ATOLL. THIS SYSTEM IS MOVING TOWARD THE SOUTH AT LESS 10 MPH...AND CONTINUES TO EXHIBIT TROPICAL CHARACTERISTICS AS IT MOVES OVER WARMER WATERS. THIS SYSTEM IS MAINTAINING A PERSISTENT RING OF THUNDERSTORMS SURROUNDING ITS WELL DEFINED CENTER. FORECAST MODELS INDICATE THIS SYSTEM WILL TURN BACK TOWARD THE SOUTHEAST OR EAST TODAY...WHICH WILL LIKELY BRING IT BACK INTO THE CENTRAL PACIFIC HURRICANE CENTER AREA OF RESPONSIBILITY LATER TODAY OR TONIGHT. 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. $$ HOUSTON +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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.