NOAA Office of Satellite and Product Operations
Satellite Precipitation Message

ZCZC NFDSPENES ALL
SPENES
HIZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 08/22/18 2259Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404
LATEST DATA USED: GOES 15 WV 2230Z; BLTPW 2140Z; FCS
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LOCATION...HAWAII...
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ATTN WFOS...HFO...
ATTN RFCS...AKRFC...
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EVENT...TORRENTIAL RAINFALL OVER HAWAII ISLAND AND OAHU WITH HURRICANE LANE
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THE LATEST CPHC POSITION AS OF 1100 AM HST OF THE CENTER OF CIRCULATION OF HURRICANE LANE 15.5N 155.9W MOVING WNW AT 8MPH.
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SATELLITE ANALYSIS AND TRENDS...
THE LATEST GOES 15 SATELLITE IMAGERY SHOWS A WELL DEFINED TROPICAL CYCLONE AT 2230Z AS RAINBANDS ASSOCIATED WITH CATEGORY 4 HURRICANE LANE HAVE BEGUN TO IMPACT HAWAII. EASTERLY WINDS WILL TRANSPORT DEEP TROPICAL MOISTURE UP THE STEEP TERRAIN OF THE HAWAIIAN ISLANDS GENERATING TORRENTIAL RAINFALL AMOUNTS AND HIGHLY DANGEROUS FLASH FLOODING CONDITIONS. LATEST BLENDED TPW SATELLITE ESTIMATES OF MOISTURE ARE BETWEEN 2.75 INCHES ON THE SOUTH EAST SIDE OF THE BIG ISLAND AND 3.00 INCHES CLOSER TO THE CENTER OF HURRICANE LANES CURRENT POSITION. PW VALUES ARE ESTIMATES OF HOW MUCH RAIN CAN FALL IN AN HOUR IF ALL THE MOISTURE WERE TO FALL AS RAIN; HOWEVER, AS THIS MOISTURE IS DRIVEN UP THE EAST AND SOUTHEASTERN FACING MOUNTAINSIDES, HIGHER HOURLY RAINFALL RATES ARE PROBABLE. HAWAII ISLAND AND OAHU WILL BE FIRST IMPACTED WITH HEAVY TROPICAL RAINBANDS. THE ENTIRE HAWAIIAN ISLAND CHAIN WILL EVENTUALLY EXPERIENCE THE EFFECTS OF HURRICANE LANE AS THE SYSTEM MOVES CLOSER TO HAWAII.
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AN ANNOTATED SATELLITE GRAPHIC SHOWING THE HEAVY PRECIPITATION
THREAT AREA SHOULD BE AVAILABLE ON THE INTERNET ADDRESS LISTED
BELOW IN APPROXIMATELY 10-15 MINUTES.
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SHORT TERM OUTLOOK VALID 2300-0500Z...HIGH CONFIDENCE FACTOR
LOCAL RADAR AS OF 2249Z ON THE BIG ISLAND OF HAWAII SHOWS HIGHER REFLECTIVE AREAS ON RADAR AS A BAND OF RAIN BEGINS TO IMPACT HAWAII ISLAND WITH HEAVY RAIN REPORTED AT PHTO AT 2200Z. UPSLOPE TRANSPORT OF TROPICAL MOISTURE WILL GENERATE TORRENTIAL RAINFALL OVER THE HIGHER ELEVATIONS WITH THE REST OF THE REGION EXPERIENCING HEAVY RAINFALL CAPABLE OF PRODUCING VERY DANGEROUS FLASH FLOODING IN THE VERY NEAR FUTURE FOR ALL INHABITANTS OF THE BIG ISLAND OF HAWAII AND OAHU.
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....NESDIS IS A MEMBER OF NWSCHAT (NESDISSATELLITEPRECIP)....
....NESDIS IS A MEMBER OF 12 PLANET....
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FOR QUESTIONS AND COMMENTS CONCERNING THE SATELLITE
PRECIPITATION MESSAGES AND GRAPHICS PLEASE EMAIL
SSDPrecip@noaa.gov
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FOR PRECIP MESSAGES AND GRAPHICS ON THE WEB:
http://www.ospo.noaa.gov/Products/atmosphere/spe/
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FOR AUTOMATED SATELLITE PRECIPITATION ESTIMATES ON THE WEB:
http://www.star.nesdis.noaa.gov/smcd/emb/ff/CONUS.php
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LAT...LON 2266 15825 2148 15660 1903 15359 1862 15627 2192 16152
2265 15824
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