Satellite Precipitation Estimates (TXUS20 KWBC)
Issued by NWS

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TXUS20 KNES 021742
SPENES
ZCZC NFDSPENES ALL
SPENES
HIZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 12/02/16 1742Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404
LATEST DATA USED: GOES-15 1700Z  HANNA
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LOCATION...HAWAII...
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ATTN WFOS...HFO...
ATTN RFCS...AKRFC...
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EVENT...HEAVY RAIN THREAT
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SATELLITE ANALYSIS AND TRENDS...WATER VAPOR IMAGERY SHOWS THAT  PATTERN
CHANGE WAS UNDERWAY AS THE ANOMALOUSLY LOW HEIGHTS THAT WERE CENTERED
S OF THE ISLANDS DURING THE PAST DAY HAVE BEGUN TO ELONGATE AND OPEN
UP IN RESPONSE TO HEIGHT FALLS NOW AMPLIFYING SE AND CROSSING 170W.
THIS AMPLIFYING UPSTREAM SYSTEM SHOULD ALLOW FOR DISCONTINUOUS
RETROGRESSION WITH MEAN TROF AND ANOMALOUSLY LOW HEIGHTS REMAINING IN
THE VIC OF THE ISLANDS ON THE SHORT TERM.  THIS WILL FAVOR A CONTINUED
ANOMALOUS MOIST E FLOW INTO THE ISLANDS THROUGHOUT THE DAY TO ENHANCE
HEAVY RAINFALL THREAT ON FAVORED E FACING TERRAIN.  EARLIER MORNING
NOAA AMSU PASS (13Z) WAS SHOWING A NORTHWARD EXPANSION OF THE AXIS OF
HEAVY PRECIPITATION S OF THE BIG ISLAND.  AT THE TIME OF THE PASS AREAL
AVERAGE RAINFALL RATES WITHIN THIS AXIS WERE MAXING OUT AROUND 1.20"/HR
WITH LOCALIZED HIGHER RATES POSSIBLE.  SINCE THAT TIME, THE AXIS OF
HEAVIEST RAINFALL HAS BEGUN TO SPREAD OVER PORTIONS OF THE BIG ISLAND
WITH EARLY MORNING VIS IMAGERY INDICATING SOME RATHER ACTIVE AND SLOW
MOVING CONVECTIVE TOPS ALONG THE S COAST.  BLENDED PW PRODUCTS WERE ALSO
SHOWING THE LEADING EDGE OF THE MOST ANOMALOUS MOISTURE ALSO BEGINNING
TO WORK INTO E AND SE PORTIONS OF THE BIG ISLAND.  THIS WOULD IMPLY THAT
HEAVY RAIN THREAT SHOULD CONTINUE THROUGHOUT THE MORNING WITH THE BEST
AND MOST ORGANIZED THREAT OVER THE BIG ISLAND AND ALSO POSSIBLY MAUI,
HOWEVER, E FACING TERRAIN THROUGHOUT ALL OF THE ISLAND CHAIN WILL BE
FAVORED WITHIN FAVORABLY MOIST AND ANOMALOUSLY E FLOW.
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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 2280 15922 2166 15604 2078 15458 1904 15328 1778 15474
1836 15691 2020 15850 2099 16149 2232 16116
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