From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Wed Dec 22 02:38:17 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 oBLIcFGo032356 for ; Wed, 22 Dec 2010 02:38:16 +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 oBKBuIaH011374; Tue, 21 Dec 2010 12:37:55 -0600 (CST) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 4850207 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Tue, 21 Dec 2010 12:37:53 -0600 Received: from relay08.cites.uiuc.edu (relay08.cites.uiuc.edu [128.174.196.9]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oBLIbrEc018647 for ; Tue, 21 Dec 2010 12:37:53 -0600 (CST) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay08.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id oBLIblkq022885 for ; Tue, 21 Dec 2010 12:37:53 -0600 (CST) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id B9F813FE0008; Tue, 21 Dec 2010 12:37:46 -0600 (CST) X-Proofpoint-Spam-Reason: safe Message-ID: <20101221183746.B9F813FE0008@weather3.admin.niu.edu> Date: Tue, 21 Dec 2010 12:37:46 -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 657 ATHW40 PHFO 211837 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 1830 UTC TUE DEC 21 2010 BASED ON DATA THROUGH 1800 UTC DECEMBER 21 2010 WATER VAPOR IMAGERY SHOWS A BROAD UPPER LEVEL RIDGE OVER THE CENTRAL PACIFIC. AN EMBEDDED SHORTWAVE TROUGH IS LOCATED NEAR 24N169W...OR ABOUT 600 MILES WEST NORTHWEST OF KAUAI. THIS TROUGH IS MOVING TO THE EAST NORTHEAST AT 20 MPH. A SECOND TROUGH IS LOCATED NEAR 20N155W...EXTENDING ACROSS THE BIG ISLAND. THIS TROUGH IS MOVING TO THE EAST AT 15 MPH. AREAS OF BROKEN LAYERED CLOUDS COVER MUCH OF THE CENTRAL PACIFIC. NORTH OF 24N...THESE CLOUDS ARE LOCATED GENERALLY BETWEEN 162W AND 172W. ISOLATED CUMULONIMBUS CLOUDS ARE EMBEDDED WITHIN THESE LAYERED CLOUDS...GENERALLY NORTH OF 28N. CLOUD TOPS EXTEND UP TO 38000 FT. ADDITIONAL CUMULONIMBUS CLOUDS ARE LOCATED WITHIN 200 MILES EITHER SIDE OF A LINE FROM 12N178W TO 21N162W TO 19N151W. THE HIGHEST CLOUD TOPS EXTEND UP TO 48000 FT...AND ARE LOCATED GENERALLY EAST OF 170W. WEST OF 170W...CLOUD TOPS EXTEND UP TO 40000 FT. INDIVIDUAL CONVECTIVE UPDRAFTS ARE SHORT LIVED...BUT ADDITIONAL CONVECTIVE CLOUDS CONTINUE TO DEVELOP THROUGH THE SAME AREA. THESE CUMULONIMBUS CLOUDS ARE EMBEDDED WITHIN A LARGER AREA OF LAYERED MIDDLE AND HIGH LEVEL CLOUDS ASSOCIATED WITH THE TWO UPPER TROUGHS. THERE IS A BREAK IN THE CLOUDS BETWEEN THE TWO FEATURES...WITH A RELATIVELY CLOUD FREE AREA LOCATED ROUGHLY WITHIN 200 MILES OF 18N160W. ACROSS THE MAIN HAWAIIAN ISLANDS...CUMULONIMBUS CLOUDS ARE STILL LOCATED OFFSHORE OVER THE COASTAL WATERS. BROKEN LOW CLOUDS COVER KAUAI AND NIIHAU...WITH DEEPER LAYERED CLOUDS JUST OFFSHORE ACROSS THE KAUAI CHANNEL. OVERCAST LAYERED CLOUDS COVER OAHU AND ADJACENT WATERS...EXTENDING OFFSHORE 80 MILES TO THE NORTH AND 50 MILES TO THE SOUTH. BROKEN LAYERED CLOUDS COVER MOLOKAI. MAUI REMAINS FREE OF LOW CLOUDS...BUT IS COVERED BY A THIN LAYERED OF HIGH LEVEL CIRRUS CLOUDS. BROKEN TO OVERCAST CLOUDS COVER LANAI AND KAHOOLAWE...AND ARE PART OF A LARGER AREA OF LAYERED CLOUDS WITH EMBEDDED CUMULONIMBUS CLOUDS THAT EXTEND UP TO 80 MILES SOUTH OF MAUI COUNTY...AND COVER MUCH OF THE ALENUIHAHA CHANNEL. THICKER MIDDLE AND HIGH LEVEL CLOUDS COVER COVER MUCH OF THE BIG ISLAND...EXCEPT FOR PORTIONS OF THE KONA SLOPES SOUTH OF KEAHOLE POINT. ADDITIONAL CUMULONIMBUS CLOUDS ARE LOCATED UP TO 120 MILES SOUTHEAST AND UP TO 200 MILES NORTHEAST OF THE BIG ISLAND. FARTHER NORTHEAST AND EAST OF THE STATE...LOW CLOUDS ARE EMBEDDED IN THE LOW-LEVEL FLOW. NORTH OF 20N...CLOUDS ARE COMPOSED OF BROKEN TO OVERCAST STRATOCUMULUS AND CLOSED CELL CUMULUS ELEMENTS. THESE CLOUDS ARE MOVING TO THE SOUTH AND SOUTHWEST AT 15 TO 20 MPH. SOUTH OF 20N...CLOUDS ARE COMPOSED OF SCATTERED TO BROKEN CUMULUS ELEMENTS. THESE CLOUDS ARE MOVING TO THE WEST SOUTHWEST AT 15 TO 20 MPH. $$ BRAVENDER +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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.