NOAA Office of Satellite and Product Operations
Satellite Precipitation Message

ZCZC NFDSPENES ALL
SPENES
HIZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 03/06/21 0356Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404
LATEST DATA USED: GOES17_CH09 WV_6.9 0330Z;PHMO RADAR;PHLI SOUNDING
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LOCATION...HAWAII...
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ATTN WFOS...HFO...
ATTN RFCS...AKRFC...
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EVENT...POSSIBLE LOCALIZED HEAVY RAINFALL FROM CONVECTIVE ACTIVITY OVER PARTS OF THE STATE INCLUDING THE ISLANDS OF MAUI AND OAHU
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SATELLITE ANALYSIS AND TRENDS...THE LATEST GOES 17 WV IMAGERY OBSERVED AN UPPER LEVEL TROUGH PRESENT OVER THE BIG ISLAND AND TO THE SOUTHEAST OF THE STATE. A LOW LEVEL MOISTURE AXIS WAS OBSERVED OVER THE CENTRAL PART OF THE STATE LIKELY OCCURRING DUE TO THE INTERACTION OF A STRONG HIGH PRESSURE WELL TO THE NORTHWEST OF THE STATE INTERACTING WITH THE UPPER LEVEL TROUGH. THE MOISTURE AXIS IS IMPACTING MAINLY THE MAUI AND OAHU REGIONS. THE LATEST PHMO RADAR LOOPS SHOW CONVECTIVE ACTIVITY OF SCATTERED SHOWERS AND SEVERAL EMBEDDED HEAVY THUNDERSTORMS PROGRESSING WITH THE STRONG TRADE WINDS FROM THE NORTHEAST TO THE SOUTHWEST TOWARDS THE ISLAND OF MAUI AND ESPECIALLY THE ISLAND OF OAHU. THE LATEST PHLI UPPER AIR SOUNDING SHOWED A FAIRLY MOIST AND UNSTABLE ENVIRONMENT WITH TPW ABOVE 1.20" AND SBCAPE GREATER THAN 1100 J/KG. MESONET REPORTS FROM EARLIER CONVECTIVE ACTIVITY THAT IMPACTED PARTS OF THE ISLAND OF OAHU OBSERVED NEARLY A 0.50" HOURLY RAINFALL RATE.
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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 0400-1100Z...MODERATE CONFIDENCE FACTOR
IN SHORT TERM OUTLOOK...STRONG TRADE WINDS ALONG WITH THE INTERACTION OF THE SURFACE TROUGH AND HIGH PRESSURE SYSTEM ARE LIKELY TO CONTINUE TO SUPPORT THE DEVELOPMENT OF SCATTERED HEAVY SHOWERS AND THUNDERSTORMS ALONG THE LOW LEVEL MOISTURE CONVERGENCE BOUNDARY WHICH IS LIKELY TO PERSIST THROUGHOUT AND AFTER THE FORECAST PERIOD. MODERATE CONFIDENCE FACTOR IN THE FORECAST DUE TO THE UNCERTAINTY WITH HOW WIDESPREAD THE COVERAGE OF CONVECTIVE ACTIVITY WILL CONTINUE TO BE AND WITH THE EXACT PLACEMENT OF ANY FUTURE CONVECTIVE CELLS THAT PROGRESS OVER THE ISLANDS OF MAUI AND OAHU OVER AND AFTER THE FORECAST PERIOD.
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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 2229 15823 2226 15823 1878 15284 1875 15551 2229 16099
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