From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Mon Sep 20 13:53:39 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 o8K5rcsr028966 for ; Mon, 20 Sep 2010 13:53:39 +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 o8K50F5t028356; Mon, 20 Sep 2010 00:53:18 -0500 (CDT) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 3481878 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Mon, 20 Sep 2010 00:53:18 -0500 Received: from relay02.cites.uiuc.edu (relay02.cites.uiuc.edu [128.174.196.4]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id o8K5rH57002934 for ; Mon, 20 Sep 2010 00:53:17 -0500 (CDT) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay02.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id o8K5rBm4011498 for ; Mon, 20 Sep 2010 00:53:17 -0500 (CDT) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id F11C3405001E; Mon, 20 Sep 2010 00:53:10 -0500 (CDT) X-Spam-Score: 20 X-Spam-Details: rule=no-quarantine_notspam policy=no-quarantine score=20 spamscore=20 ipscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx engine=5.0.0-1005130000 definitions=main-1009190206 X-Spam-OrigSender: ldm@weather3.admin.niu.edu X-Spam-Bar: ** Message-ID: <20100920055310.F11C3405001E@weather3.admin.niu.edu> Date: Mon, 20 Sep 2010 00:53:10 -0500 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 859 ATHW40 PHFO 200552 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 0530 UTC MON SEP 20 2010 BASED ON DATA THROUGH 0500 UTC SEPTEMBER 20 2010 THERE HAS BEEN LITTLE CHANGE IN CLOUD COVER AROUND THE MAIN HAWAIIAN ISLANDS SINCE THIS AFTERNOON AS CLOUDS FROM THE TRAILING END OF A COLD FRONT CONTINUE MOVING OVER THE ISLANDS IN THE TRADE-WIND FLOW. CLOUDS ARE SCATTERED OVER NIIHAU. SHOWERY...BROKEN TO OVERCAST LOW CLOUDS COVER WINDWARD AREAS FROM KAUAI TO MAUI...AND BROKEN LOW CLOUDS ARE SPREADING LEEWARD ON OAHU...MOLOKAI AND LANAI. BROKEN TO OVERCAST CLOUDS COVER MOST LOWLAND AREAS OF THE BIG ISLAND OF HAWAII BUT CLOUDS ARE ISOLATED ALONG THE COAST NEAR CAPE KUMUKAHI AND BETWEEN VOLCANO AND PAHALA. SKIES ARE CLEAR OVER THE INTERIOR OF THE BIG ISLAND ABOVE ABOUT 5500 FEET OF ELEVATION. LOW CLOUDS NEAR THE MAIN HAWAIIAN ISLANDS ARE MOVING FROM THE NORTHEAST AT 20 TO 25 MPH. THERE ARE SCATTERED TO BROKEN LOW CLOUDS UPSTREAM OF THE ISLANDS FROM KAUAI TO MOLOKAI AND BROKEN TO OVERCAST LOW CLOUDS UPSTREAM OF MAUI AND THE BIG ISLAND. THE CLOUDS OVER MAUI AND THE BIG ISLAND ARE PART OF THE TRAILING END OF A FRONTAL BAND. THE 150 MILE WIDE BAND OF SHOWERY...BROKEN TO OVERCAST LOW CLOUDS LIES SOUTHEAST OF A LINE FROM 26N140W...TO 21.5N150W...TO 22.5N154W...ACROSS MAUI TO 135 MILES SOUTH OF KAUAI TO 21N165W. THE BAND HAS BEEN NEARLY STATIONARY OVER THE PAST SEVERAL HOURS BUT A BULGE ALONG THE NORTHWEST EDGE OF THE BAND IS MOVING SOUTHWEST AT 15 MPH. THIS AREA OF SHOWERY CUMULUS CLOUDS IS MOVING OVER THE BIG ISLAND AND MAUI AND COULD SPREAD OVER MOLOKAI. A 200 MILE WIDE BAND OF SHOWERY...BROKEN TO OVERCAST LOW CLOUDS IS CENTERED FROM 19N171W TO 25N173W. THIS CLOUD AREA CONTINUES MOVING TOWARD THE WEST AT 20 MPH. AN UNUSUAL DOUBLE CLOUD BAND PERSISTS IN THE DEEP TROPICS SOUTH OF THE HAWAIIAN ISLANDS. A 300 TO 400 MILE WIDE BAND OF BROKEN LAYERED CLOUDS...SCATTERED TCU...AND ISOLATED CB LIES SOUTH OF A LINE FROM 10N140W TO 12N150W TO 09N160W TO 09N176W. THERE MAY BE A SMALL LOW AROUND 150W WHERE THE BAND BULGES NORTHWARD...BUT IF SO...THE LOW IS NOT VERY EASY TO FIND ON INFRARED IMAGERY. A WEAKER 200 MILE WIDE BAND OF SHOWERY BROKEN LOW CLOUDS AND SCATTERED TCU IS CENTERED FROM 14N140W TO 12N172W. WATER VAPOR IMAGERY...WHICH SHOWS FEATURES MAINLY ABOVE 24000 FT... SHOWS A TROUGH ALOFT CENTERED FROM A CYCLONE AT 30N150W THROUGH ANOTHER LOW AT 26N156W TO 24N160W. AN ANTICYCLONE ALOFT IS CENTERED 680 MILES WEST NORTHWEST OF KAUAI NEAR 26N170W. $$ DONALDSON +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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.