From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Thu Dec 9 08:32:20 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 oB90WINe002370 for ; Thu, 9 Dec 2010 08:32:19 +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 oB7BRZ55022333; Wed, 8 Dec 2010 18:31:58 -0600 (CST) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 4690657 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Wed, 8 Dec 2010 18:31:58 -0600 Received: from relay04.cites.uiuc.edu (relay04.cites.uiuc.edu [128.174.196.5]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oB90Vw5A009047 for ; Wed, 8 Dec 2010 18:31:58 -0600 (CST) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay04.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id oB90Vpva011910 for ; Wed, 8 Dec 2010 18:31:57 -0600 (CST) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id 3086D3FE0853; Wed, 8 Dec 2010 18:31:51 -0600 (CST) X-Proofpoint-Spam-Reason: safe Message-ID: <20101209003151.3086D3FE0853@weather3.admin.niu.edu> Date: Wed, 8 Dec 2010 18:31:51 -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 670 ATHW40 PHFO 090031 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 0030 UTC THU DEC 09 2010 BASED ON DATA THROUGH 0000 UTC DECEMBER 09 2010 A RAGGED SURFACE FRONT 350 MILES NORTHWEST OF KAUAI IS HOLDING THE SUBTROPICAL RIDGE OVER THE MAIN HAWAIIAN ISLANDS...WHERE LIGHT WINDS HAVE LED TO AFTERNOON SEA BREEZES AND SOME INTERIOR CLOUDS. WITH THE EAST TO WEST ORIENTED SURFACE RIDGE NEAR OAHU...THE LOW LEVEL FLOW IS RATHER LIGHT OVER HAWAIIAN WATERS. SCATTERED LOW CLOUDS NEAR KAUAI AND NORTHEAST OF MAUI ARE TRAVELLING FROM THE SOUTH TO SOUTH SOUTHEAST AT 10 TO 15 MPH. AS A RESULT...AFTERNOON SEA BREEZES HAVE LED TO SMALL AREAS OF BROKEN LOW CLOUDS OVER INTERIOR SECTIONS OF THE SMALLER ISLANDS. CLOUD COVER IS A BIT MORE EXTENSIVE ON THE BIG ISLAND...THANKS TO A SMALL AREA OF CLOUDS THAT MOVED UP FROM THE SOUTH TODAY. BROKEN LOW CLOUDS COVER MOST MIDDLE SLOPES AS WELL AS THE LOWER SLOPES OF THE EASTERN AND SOUTHEASTERN PORTION OF THE ISLAND. THE NEARLY STATIONARY SURFACE FRONT 350 MILES NORTHWEST IS BEING INVIGORATED BY AN UPPER LEVEL TROUGH MOVING IN FROM THE WEST. THE UPPER TROUGH AXIS RUNS ALONG 30N173W...23N172W...AND 10N180 AND IS MOVING TO THE EAST AROUND 20 MPH. A 350 MILE WIDE SHIELD OF OVERCAST LAYERED CLOUDS AND EMBEDDED THUNDERSTORMS HAS DEVELOPED ALONG THE FRONT TODAY WITHIN 175 MILES OF A LINE FROM 30N163W TO 22N167W. THE FRONT NARROWS TO A 250 MILE BAND OF BROKEN LAYERED CLOUDS AND ISOLATED THUNDERSTORMS WITH TOPS TO 49000 FT FROM 22N167W TO 17N175W. ADDITIONAL ISOLATED THUNDERSTORMS ARE FOUND WEST OF THE FRONT AND CLOSER TO THE UPPER TROUGH AXIS WITHIN 50 MILES OF A LINE FROM 29N170W TO 25N175W. WATER VAPOR IMAGERY SHOWS AN AREA OF MID LEVEL SUBSIDENCE OVER AND EAST OF THE BIG ISLAND AND MAUI COUNTY BEING CONTINUALLY ERODED BY THE COMBINED EFFECTS OF THE BROAD UPPER LEVEL TROUGH OVER THE NORTHEAST PACIFIC AND THE UPPER LEVEL TROUGH APPROACHING FROM THE WEST. A WEAK SURFACE TROUGH IS PASSING 375 MILES SOUTH OF KAUAI ROUGHLY ALONG 18N161W AND 15N161W. DEVELOPING UPPER LEVEL TROUGHING OVER THE REGION IS TRIGGERING AN ISOLATED THUNDERSTORM ALONG THE TROUGH NEAR 17N161W. A SMALL AREA BROKEN LOW LEVEL CLOUDS ALONG THE TROUGH EXTENDS NORTH OF THE TROUGH INTO HAWAIIAN OFFSHORE WATERS. $$ DWROE +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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.