Satellite Precipitation Estimates (TXUS20 KWBC)
Issued by NWS

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276
TXUS20 KNES 231046
SPENES
ZCZC NFDSPENES ALL
SPENES
HIZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 02/23/18 1045Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404
LATEST DATA USED: SSMIS/AMSU 1030Z; RADAR; GOES 15 WV;FCS
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LOCATION...HAWAII...
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ATTN WFOS...HFO...
ATTN RFCS...AKRFC...
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EVENT...HEAVY RAIN
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SATELLITE ANALYSIS AND TRENDS...THE LATEST SATELLITE IMAGERY SHOWS A BROAD
SCALE WAVE IN THE ATMOSPHERE NOW MAINLY SOUTHWEST OF THE HAWAIIAN ISLANDS.
SSMIS/AMSU PRECIPITABLE WATER VALUES ARE ESTIMATED TO BE APPROACHING
3.00 INCHES WHICH IS AN ANOMALOUSLY HIGH VALUE CONSIDERING IT IS JUST
AN ESTIMATE; NONETHELESS, LIFTING MECHANISMS INCLUDING DIVERGENCE ALOFT
FROM DIFFLUENCE AND RIGHT ENTRANCE LIFT GENERATED WITH A JET STREAK
NORTHWEST OF THE HAWAIIAN ISLANDS IS GOING TO LIFT THIS MOISTURE AND
PRODUCE MODERATE TO HEAVY RAIN CAPABLE OF CREATING FLASH FLOODING DURING
THE OUTLOOK PERIOD ACROSS THE HAWAIIAN ISALNDS.
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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 1045-1745Z...MEDIUM CONFIDENCE FACTOR
IN SHORT TERM OUTLOOK...AN AREA OF RAIN WITH EMBEDDED CONVECTION IS TO
THE SOUTH AND WEST OF THE HAWAIIAN ISLAND CHAIN.  THE SYSTEM IS SLOW TO
MOVE AS MOST OF THE HEAVIER RAIN APPEARS TO BE SOUTHWEST OF THE ISLAND,
BUT IS PROGRESSING NORTHWARD AND SLOWLY EASTWARD.  AS MODERATE AND
EMBEDDED HEAVIER SHOWERS ENCOUNTER ELEVATED TERRAIN, FLASH FLOODING IS
A CONCERN FOR SEVERAL HOURS FOR THE HAWAIIAN ISLANDS.
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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 2256 16013 2255 15389 1878 15462 1879 16099 2254 16016

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