From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Mon Sep 27 20:03:39 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 o8RC3bqP020462 for ; Mon, 27 Sep 2010 20:03:38 +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 o8R3jlOP019148; Mon, 27 Sep 2010 07:02:46 -0500 (CDT) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 3607410 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Mon, 27 Sep 2010 07:02:45 -0500 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 o8RC2j9a019212 for ; Mon, 27 Sep 2010 07:02:45 -0500 (CDT) 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 o8RC2cIN020704 for ; Mon, 27 Sep 2010 07:02:45 -0500 (CDT) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id BA7E84050024; Mon, 27 Sep 2010 07:02:38 -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-1009270061 X-Spam-OrigSender: ldm@weather3.admin.niu.edu X-Spam-Bar: Message-ID: <20100927120238.BA7E84050024@weather3.admin.niu.edu> Date: Mon, 27 Sep 2010 07:02:38 -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 090 ATHW40 PHFO 271202 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 1230 UTC MON SEP 27 2010 BASED ON DATA THROUGH 1200 UTC SEPTEMBER 27 2010 TWO PARALLEL CLOUD BANDS ASSOCIATED WITH A FRONT EXTENDED ACROSS THE OCEAN NORTH OF THE MAIN HAWAIIAN ISLANDS. THE PRIMARY FRONTAL CLOUD BAND WAS LOCATED WITHIN 90 MILES OF THE CURVE FROM 29N 180 TO 26N 171W TO 30N 155W AND FURTHER NORTHEAST. A PRE-FRONTAL CLOUD BAND WAS LOCATED WITHIN 60 MILES OF THE CURVE FROM 24N 167W TO 27N 154W TO 30N 149W AND FURTHER NORTHEAST...THOUGH CUMULUS AND STRATOCUMULUS CLOUD FRAGMENTS FURTHER TO THE WEST SHOWED SIGNS OF MERGING INTO AN EXTENSION OF THIS BAND. BOTH FEATURES CONSISTED PRIMARILY OF NEARLY SOLID MIDDLE TO LOW CLOUD LAYERS...THOUGH THE PRE-FRONTAL BAND INCLUDED SUBSTANTIAL AMOUNTS OF STRATOCUMULUS CLOUDS. THESE BANDS SHIFTED TOWARD THE SOUTHEAST SLOWLY. TO THE SOUTH...LIGHT THUNDERSTORM ACTIVITY CONTINUED IN THE ITCZ BETWEEN 13N AND 05N...MOSTLY WEST OF 150W. ALTHOUGH SEVERAL WEAK CENTERS OF LOW PRESSURE WERE PRESENT IN THE ITCZ...THEY DID NOT APPEAR TO BE ASSOCIATED WITH PERSISTENT THUNDERSTORM ACTIVITY. LAYERED MIDDLE TO HIGH DEBRIS CLOUDS FROM THIS AND EARLIER CONVECTION OBSCURED LOWER FEATURES MOSTLY FROM 14N TO 03N...AND PARTLY BETWEEN 19N AND THE EQUATOR. WATER VAPOR IMAGES SHOWED A CENTER OF LOW PRESSURE IN THE UPPER ATMOSPHERE JUST TO THE WEST SOUTHWEST OF THE MAIN HAWAIIAN ISLANDS. THIS LOW SLIGHTLY ENHANCED SHOWERS FROM ISLAND LEE PLUMES PASSING UNDER IT...BUT HAD LITTLE EFFECT OTHERWISE. ELSEWHERE...CLOUD COVER ACROSS HAWAIIAN WATERS CONSISTED MAINLY OF LOOSE BANDS OR CLUMPS OF MARINE STRATOCUMULI AND CUMULI LOCATED BETWEEN THE CURVE FROM 20N 180 TO 19N 170W TO 27N 146W TO 30N 140W...AND THE CURVE FROM 17N 180 TO 15N 168W TO 16N 151W TO 17N 140W. THESE CLUMPS VARIED IN SIZE FROM INDIVIDUAL SMALL CUMULI TO A NEARLY SOLID OVERCAST LOCATED NORTH OF 20N AND EAST OF 150W. THESE CLOUDS HAD EXPANDED IN AREAL COVERAGE OVER THE PAST SIX HOURS. THEY GENERALLY ROSE TO HEIGHTS OF 8000 TO 10000 FEET...AND MOVED TOWARD THE SOUTHWEST TO WEST AT AROUND 10 MILES AN HOUR. ACROSS THE MAIN HAWAIIAN ISLANDS...CLOUD COVER CONSISTED MOSTLY OF MARINE CUMULI AND STRATOCUMULI MOVING ASHORE ALONG SLOPES FACING EAST...ESPECIALLY ON OAHU...MOLOKAI...AND MAUI. LAYERED DEBRIS CLOUDS FROM AFTERNOON CUMULUS BUILDUPS ON SUNDAY HAD DISSIPATED FOR THE MOST PART. THESE CLOUDS VARIED CONSIDERABLY IN HEIGHT FROM AROUND 3000 FEET TO NEAR 10000 FEET. RADAR DATA FROM NEAR THE ISLANDS SHOWED SCATTERED SHOWERS OFFSHORE SURROUNDING OAHU AND TO THE NORTH CLOCKWISE THROUGH SOUTHEAST OF MAUI COUNTY AND THE BIG ISLAND...BUT ISOLATED SHOWERS AT MOST ELSEWHERE. $$ RYSHKO +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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.