From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Wed Sep 22 20:28:37 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 o8MCSZCx022677 for ; Wed, 22 Sep 2010 20:28:36 +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 o8M2dXMS028356; Wed, 22 Sep 2010 07:28:18 -0500 (CDT) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 3527053 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Wed, 22 Sep 2010 07:28:18 -0500 Received: from relay01.cites.uiuc.edu (relay01.cites.uiuc.edu [128.174.4.23]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id o8MCSIu6025022 for ; Wed, 22 Sep 2010 07:28:18 -0500 (CDT) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay01.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id o8MCSBcO008700 for ; Wed, 22 Sep 2010 07:28:17 -0500 (CDT) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id 10C85405001E; Wed, 22 Sep 2010 07:28:10 -0500 (CDT) X-Spam-Score: 0 X-Spam-Details: rule=no-quarantine_notspam policy=no-quarantine score=0 spamscore=0 ipscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx engine=5.0.0-1005130000 definitions=main-1009220065 X-Spam-OrigSender: ldm@weather3.admin.niu.edu X-Spam-Bar: Message-ID: <20100922122811.10C85405001E@weather3.admin.niu.edu> Date: Wed, 22 Sep 2010 07:28:10 -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 736 ATHW40 PHFO 221228 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 1230 UTC WED SEP 22 2010 BASED ON DATA THROUGH 1200 UTC SEPTEMBER 22 2010 THE PRESENCE OF SURFACE RIDGING ABOUT 700 MILES NORTH OF KAUAI CONTINUED TO MAINTAIN MODERATE TRADE WINDS ACROSS THE HAWAIIAN ISLAND CHAIN EARLY THIS MORNING. THE LOW-LEVEL TRADE WIND FLOW WAS TRANSPORTING BROKEN LOW CLOUDS AND SCATTERED SHOWERS ASSOCIATED WITH THE REMNANTS OF AN OLD FRONTAL SYSTEM ACROSS THE WINDWARD COASTAL WATERS FROM THE BIG ISLAND TO MAUI. A PLUME OF BROKEN LOW CLOUDS AND SCATTERED SHOWERS WAS ALSO WEST OF KAUAI AND NIIHAU. THERE WERE MAINLY SCATTERED LOW CLOUDS WITH EMBEDDED ISOLATED SHOWERS ELSEWHERE ACROSS THE HAWAIIAN COASTAL WATERS. THE GENERAL MOTION OF THE LOW CLOUDS ACROSS THE WINDWARD HAWAIIAN COASTAL WATERS WAS TOWARD THE WEST AT 15 TO 20 MPH. THE HIGHEST TOPS OF THE LOW CLOUDS OVER THE OCEAN SURROUNDING THE HAWAIIAN ISLANDS WERE ESTIMATED TO BE ABOUT 8 THOUSAND FEET. AS OF 200 AM HST WEDNESDAY...SCATTERED LOW CLOUDS WERE DETECTED ACROSS PARTS OF WINDWARD KAUAI. BROKEN LOW CLOUDS WERE ALONG THE KOOLAU RANGE AND WINDWARD SHORES OF OAHU. SCATTERED TO BROKEN LOW CLOUDS WERE OVER PARTS OF MOLOKAI. A FEW LOW CLOUDS WERE AFFECTING NORTHERN LANAI. ON MAUI...BROKEN TO LOCALLY OVERCAST LOW CLOUDS WERE ALONG THE WINDWARD SHORELINE...THE LOWER WINDWARD SLOPES OF MOUNT HALEAKALA AND THE WESTERN MOUNTAINS. SCATTERED TO LOCALLY BROKEN LOW CLOUDS WERE ABOVE THE WINDWARD COASTAL AREAS OF THE BIG ISLAND. A FEW PATCHES OF LOW CLOUDS WERE ALSO EVIDENT ACROSS PORTIONS OF THE KONA COAST OF THE BIG ISLAND. ACCORDING TO LOOPS OF WATER VAPOR IMAGERY AND SATELLITE DERIVED UPPER LEVEL WINDS...THE AXIS OF AN ELONGATED EAST TO WEST ORIENTED UPPER TROPOSPHERIC LOW WAS NEAR 24N 157.5W...OR ABOUT 180 MILES NORTH OF HONOLULU. UPPER LEVEL TROUGHS EXTENDED FROM THIS LOW TO 26N 163W...AND TO ANOTHER LOW ALOFT CENTERED NEAR 29.5N 148W. THESE LOWS AND TROUGHS HAVE MOVED LITTLE DURING THE PAST FEW HOURS. THE AREA OF SHOWERS AND THUNDERSTORMS CENTERED ABOUT 440 MILES SOUTH SOUTHEAST OF HILO HAS CHANGED LITTLE IN ORGANIZATION EARLY THIS MORNING. THE COVERAGE AND INTENSITY OF THE THUNDERSTORMS WITHIN THIS AREA HAVE ALSO BEEN FLUCTUATING DURING THE PAST 18 HOURS. CONTINUED GRADUAL DEVELOPMENT OF THIS FEATURE IS POSSIBLE AS IT CONTINUES MOVING SLOWLY TOWARD THE WEST NORTHWEST AT ABOUT 10 MPH DURING THE NEXT COUPLE OF DAYS. THE CLOUDS AND DEEP CONVECTION WERE IN THE AREA FROM 10N TO 16N BETWEEN 150.5W AND 155W. THE HIGHEST TOPS OF THE CUMULONIMBUS CLOUDS ASSOCIATED WITH THIS FEATURE WERE ESTIMATED TO BE ABOUT 48 THOUSAND FEET. ELSEWHERE IN THE DEEP TROPICS FAR SOUTH OF THE HAWAIIAN ISLANDS...A SURFACE TROUGH EXTENDED FROM NEAR 10.5N 140W TO 11.5N 148.5W. ISOLATED MODERATE THUNDERSTORMS WERE WITHIN 170 MILES SOUTH OF THIS TROUGH. THE INTERTROPICAL CONVERGENCE ZONE...OR ITCZ...EXTENDED FROM NEAR 11N 158W TO 07.5N 180W. SCATTERED MODERATE TO LOCALLY STRONG THUNDERSTORMS WERE WITHIN 140 MILES ON EITHER SIDE OF THE ITCZ EAST OF 170W...WHILE ISOLATED THUNDERSTORMS WERE WITHIN 180 MILES OF THE ITCZ WEST OF 170W. THE HIGHEST TOPS OF THE CUMULONIMBUS CLOUDS ASSOCIATED WITH THE ITCZ WERE ESTIMATED TO BE ABOUT 51 THOUSAND FEET. $$ 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.