Satellite Precipitation Estimates (TXUS20 KWBC)
Issued by NWS

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000
TXUS20 KNES 290316
SPENES
ZCZC NFDSPENES ALL
SPENES
HIZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 04/29/17 0315Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404
LATEST DATA USED: AMSU:0230Z...SSMIS:0230Z...GOES-15:0230Z DG
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LOCATION...HAWAII...
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ATTN WFOS...HFO...
ATTN RFCS...APRFC...
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EVENT...ANOTHER ROUND OF HEAVY RAIN HEADING FOR MAUI.
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SATELLITE ANALYSIS AND TRENDS...THE LATEST WATER VAPOR IMAGERY INDICATES
A SLOW MOVING FRONTAL BOUNDARY MOVING ACROSS THE WESTERN AND CENTRAL
ISLANDS. AMSU DATA SHOWS PWAT VALUES OF ABOUT 1.5" IN THE REGION. AN
80-100KT JET STREAK BEHIND THE BOUNDARY IS ALLOWING FOR A FAVORABLE
LEFT EXIT REGION TO SETUP OVER THE WESTERN ISLANDS, GENERATING DYNAMIC
LIFT. SSMIS RAINFALL RATES IN THE REGION ARE HOVERING AROUND 0.5" PER
HOUR BUT WITH LAND INTERACTION RAIN RATES SHOULD RISE TO OVER AN INCH PER
HOUR WITH LOCALLY HIGHER RATES LIKELY. GOES HIGH DENSITY WINDS AT 300MB
INDICATE AN APPROACHING AREA OF POSITIVE VORTICITY ADVECTION AND AN AREA
OF DIVERGENCE ALOFT SHOULD ENHANCE LIFT AND GENERATE HEAVIER SHOWERS. CAPE
EXCEEDS 2500 J/KG PROVIDING AMPLE INSTABILITY FOR CONVECTION TO GENERATE.
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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 0300-0600Z...MEDIUM CONFIDENCE FACTOR
IN SHORT TERM OUTLOOK...SCATTERED SHOWERS ARE NOTED BETWEEN KAUAI AND
OAHU MOVING EASTWARD SLOWLY. THIS ACTIVITY SHOULD BEGIN IMPACTING WESTERN
OAHU IN THE NEXT FEW HOURS. THIS ADDITIONAL RAINFALL LOOKS TO EXACERBATE
EARLIER FLOODING.
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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 2455 15195 1750 15192 1759 16330 2434 16317
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